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Potamogeton foliosus

Raf. (1808)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Alismatales Family: Potamogetonaceae Genus: Potamogeton

leafy pondweed

Description

Key Characters:

Growth Form: Plants completely submerged.

Stems: Stems slender, slightly compressed and inconspicuously winged, 2–10 dm long, many branched, arising from a dense mat of slender rhizomes.

Roots: Fibrous root system.

Leaves: Leaves simple. Alternate, occasionally the upper ones subopposite. Blades linear, 10–100 mm long, (0.3–)1–1.5(–2.5) mm wide, (1–)3–5–nerved. Apex acute to cuspidate. Base attenuate, attached directly at the node. Surfaces glabrous. Sheathing. Stipules connate into a tubular sheath, the sheath 5–15 mm long, rupturing and deciduous, with portions persistent.

Flowers: Flowers few in subglobose to subcapitate spikes 1–5 mm long, peduncles stout, 3–15(–20) mm long. Flowers small, wind–pollinated, bisexual (perfect), actinomorphic. Perianth of 4 tepals in 1 series, greenish, 0.5–1 mm long. Stamens 4 in 1 series, opposite the tepals, adnate to the claw; anthers subsessile, dithecal, opening by longitudinal slits, extrorse. Pollen spheric. Ovary superior, carpels 4, distinct, alternate with the stamens; ovule 1, attached to the ventral margin of the carpel usually toward the base, orthotropous, usually becoming campylotropous or anatropous after fertilization; style short, terminal, or absent; stigma dry, not papillose.

Fruit: Fruit obliquely obovoid; 1.5–2(–2.5) mm long; dorsal keel prominent undulate–dentate; the 2 lateral keels obscure; style persistent; 0.1–0.4 mm long. Seeds without endosperm.

Ploidy: 2n = 14; 26; 28

Habitat: Aquatic; occurring in streams; taro paddies; and man–made watercourses such as irrigation ditches.

Elevation Range: 0–190 m.

Historical Distribution

Accepted Subtaxa (in Hawai'i) (1)

Potamogeton foliosus subsp. foliosus

Uses and Culture

USES

Natural History

Statewide Status

Indigenous

Island Status

Kaua'i Indigenous
O'ahu Indigenous
Maui Indigenous
Hawai'i Indigenous

Dispersal Agents


Pollinators

Bibliography

Name Published In: Med. Repos., ser. 2, 5: 354 (1808)

Other References

Wagner et al. 1990:1607 (K, O, M, H); Herbst 1998:4 (DESCR)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Potamogeton foliosus Raf. Hilo-Wailoa River mauka of Keawe Bridge In water 2ft deep. PRESERVED_SPECIMEN Stemmermann, R.L. 7187 Hawaii BISH 8/14/1987
2 Potamogeton foliosus Raf. Honolii Taro Patches. PRESERVED_SPECIMEN Forbes, C.N. s.n. Kauai BISH 8/1/1909
3 Potamogeton foliosus Raf. kailua; edge of kaelepulu pond w borders PRESERVED_SPECIMEN neal, m.c. hartt, c.e. collector number: s.n. Oahu BISH 6/11/1940
4 Potamogeton foliosus Raf. kailua, n slope of haleakala, upper ditch shady grove PRESERVED_SPECIMEN forbes, c.n. collector number: 2503 m Oahu BISH 6/14/1920
5 Potamogeton foliosus Raf. Punaluu, Kau District In brackish water. PRESERVED_SPECIMEN St. John, H. 11321 Hawaii BISH 12/25/1931
6 Potamogeton foliosus Raf. hala ula maulili rd., surety ranch llc kohala flume ditch, big island, hawaii Roadside. PRESERVED_SPECIMEN crago, l.m. imada, c.; erickson, t.; puttock, c.; uyehara, k. collector number: 2005-119 Maui BISH 3/20/2005
7 Potamogeton foliosus Raf. honolii Taro patches. PRESERVED_SPECIMEN forbes, c.n. collector number: s.n. Kauai BISH 8/8/1909
8 Potamogeton foliosus Raf. unknown PreservedSpecimen Hillebrand, W.B. Lydgate, J.M. Collector Number: s.n. BISH Specimen
9 Potamogeton foliosus Raf. Waipahu, Kipapa Gulch at mouth of stream PRESERVED_SPECIMEN Hosaka, E.Y. 1246 Oahu BISH 12/17/1933
10 Potamogeton foliosus Raf. west maui, wailuku, n of ooawa kilika gulch, waihee ditch Shallow, flowing water. Associated vegetation: Vallisneria PRESERVED_SPECIMEN oppenheimer, h.l. brosius, c. collector number: h120515 Maui BISH 12/21/2005
11 Potamogeton foliosus Raf. West Maui, Wailuku, N of Ooawa kilika Gulch, Waihee Ditch Shallow, flowing water. Associated vegetation: Vallisneria PRESERVED_SPECIMEN Oppenheimer, H.L. H120515 Maui BISH 12/21/2005
12 Potamogeton foliosus Raf. W Maui, Lahaina District, Honokowai, Honokohau Ditch Submerged in ditch. PRESERVED_SPECIMEN Oppenheimer, H.L. Collector Number: H119917 Maui BISH 11/24/1999
13 Potamogeton foliosus Raf. Hanalei, Limahuli Garden, Hwy 56, W of Haena lower garden, taro lohi PRESERVED_SPECIMEN Lorence, D.H. 9506 Kauai BISH 2/18/2006
14 Potamogeton foliosus Raf. morgan toledo taro farm, waipio valley, big island, hawaii In taro loi, rooted to the bottom mud, where water flows into pond. PRESERVED_SPECIMEN crago, l.m. imada, c.; erickson, t.; puttock, c. collector number: 2005-092 Hawaii BISH 3/19/2005
15 Potamogeton foliosus Raf. w maui, lahaina district, honokowai, honokohau ditch Submerged in ditch. PRESERVED_SPECIMEN oppenheimer, h.l. collector number: h119917 Maui BISH 11/24/1999
16 Potamogeton foliosus Raf. waipahu, kipapa gulch at mouth of stream PRESERVED_SPECIMEN hosaka, e.y. collector number: 1246 Oahu BISH 12/17/1933
17 Potamogeton foliosus Raf. sandwich-insula [=hawaiian islands]. PRESERVED_SPECIMEN hillebrand, w.b. s.n. MEL
18 Potamogeton foliosus Raf. E part of hanakapiai Valley Submerged in small swift stream. PRESERVED_SPECIMEN St. John, H. 13890 Kauai BISH 12/30/1933
19 Potamogeton foliosus Raf. Kailua, N slope of Haleakala, upper Ditch PRESERVED_SPECIMEN Forbes, C.N. 2503 M Maui BISH 6/14/1920
20 Potamogeton foliosus Raf. Hala Ula Maulili Rd., Surety Ranch LLC Kohala Flume Ditch, Big Island, Hawaii Open flume, attached to bottom, flowing water. PRESERVED_SPECIMEN Crago, L.M. 2005-119 Hawaii BISH 3/20/2005
21 Potamogeton foliosus Raf. Huleia River PRESERVED_SPECIMEN Forbes, C.N. 739 K Kauai BISH 10/1/1916
22 Potamogeton foliosus Raf. Oahu PRESERVED_SPECIMEN Mann, H. 21 Oahu BISH 2/6/1905
23 Potamogeton foliosus Raf. headwaters of n fork of wailua river, area called "the blue hole" or "the crater" just e of mt waialeale and kawaikini Deep valley surrounded by steep cliffs ca 1000 m high laced with waterfalls; low primary vegetation of small, stunted trees 1-2 m tall, numerous pteridophytes, and Gunnera over saturated, rocky ground. PRESERVED_SPECIMEN lorence, d.h. plews, j.h.r.; wood, k.r; doyle, m. collector number: 5322 Kauai BISH 7/23/1987
24 Potamogeton foliosus Raf. hanalei, limahuli garden, hwy 56, w of haena lower garden, taro lohi PRESERVED_SPECIMEN lorence, d.h. staples, g. collector number: 9506 Kauai BISH 2/18/2006
25 Potamogeton foliosus Raf. Pohakuhapai Ditch Trail, kamalomaloo Submerged in ditch. PRESERVED_SPECIMEN St. John, H. 23127 Kauai BISH 12/29/1947
26 Potamogeton foliosus Raf. e part of hanakapiai valley PRESERVED_SPECIMEN st.john, h. fosberg, f.r. collector number: 13890 Oahu BISH 12/30/1933
27 Potamogeton foliosus Raf. hanakapiai, napali coast Small stream. PRESERVED_SPECIMEN st.john, h. et al. collector number: 10935 Kauai BISH 12/31/1930
28 Potamogeton foliosus Raf. n fork of the wailua river behind dam at mouth of iliiliula n wailua ditch intake PRESERVED_SPECIMEN flynn, t. collector number: 898 Oahu BISH 7/18/1984
29 Potamogeton foliosus Raf. n fork of the Wailua River behind dam at mouth of Iliiliula N Wailua Ditch intake PRESERVED_SPECIMEN Flynn, T. 898 Kauai BISH 7/18/1984
30 Potamogeton foliosus Raf. Hanalei, Limahuli Garden, Hwy 56, W of Haena lower garden, taro lohi PRESERVED_SPECIMEN Lorence, D.H. Staples, G. Collector Number: 9506 Kauai BISH 2/18/2006
31 Potamogeton foliosus Raf. haena, lower limahuli valley PRESERVED_SPECIMEN n. tangalin 17241724a MICH 4/1/2008
32 Potamogeton foliosus Raf. W. Maui,, Honolua Ditch, vicinity of Mahinahina Gulch. Elev. 720 ft. PRESERVED_SPECIMEN Hank Oppenheimer H10125 Maui PTBG 1/12/2001
33 Potamogeton foliosus Raf. Haena, Lower Limahuli Valley, Bette Middler property, in irragation ditch. PRESERVED_SPECIMEN Natalia Tangalin 1724A Kauai PTBG 4/1/2008
34 Potamogeton foliosus Raf. SE of Mt. Pohakupele on N fork of Wailua River at irrigation ditch intake. Pool with mud bottom and steady flow of cool, clear water. PRESERVED_SPECIMEN David H. Lorence 7113 Kauai PTBG 11/4/1991
35 Potamogeton foliosus Raf. Hanalei Taro Patch. PRESERVED_SPECIMEN C. N. Forbes s.n. Kauai PTBG 8/1/1907
36 Potamogeton foliosus Raf. lower limahuli valley, bette middler property, in irrigation ditch. PRESERVED_SPECIMEN n. tangalin, c. trauernicht, k. winter & m. demotta 1724a Kauai US 4/1/2008
37 Potamogeton foliosus Raf. North fork of the Wailua River behind dam at mouth of Iliiliula North Wailua Ditch intake. PRESERVED_SPECIMEN Tim Flynn 898 Kauai PTBG 7/18/1984
38 Potamogeton foliosus Raf. Hala Ula Maulili Road, Surety Ranch LLC Kohala Flume Ditch. 20 12.51 N, 155 47.26 W Open flume, flowing water. PRESERVED_SPECIMEN L. M. Crago 2005-119 Hawaii PTBG 3/20/2005
39 Potamogeton foliosus Raf. N Fork of Wailua River. In Lihue Plantations dam; Aquatic PRESERVED_SPECIMEN Derral Herbst 2937 Kauai PTBG 3/27/1973
40 Potamogeton foliosus Raf. Limahuli Garden along Highway 56 west of Haena, lower garden area with taro lohi. PRESERVED_SPECIMEN David H. Lorence 9506 Kauai PTBG 2/18/2006
41 Potamogeton foliosus Raf. Morgan Toledo Taro Farm, Waipio Valley. 20 6.266 N 155 36.35 W Taro loi. PRESERVED_SPECIMEN L. M. Crago 2005-092 Hawaii PTBG 3/19/2005
42 Potamogeton foliosus Raf. W. Maui, N of Ooawa kilika Gulch. Growing in Waihee Ditch in shallow, flowing water.\nCoordinates: 2305910.19 75900511 PRESERVED_SPECIMEN Hank Oppenheimer H120515 Maui PTBG 12/21/2005
43 Potamogeton foliosus Raf. Headwaters of N. fork of Wailua River, area called "The Blue Hole" or "The Crater", just E. of Mt. Waialeale and Kawaikini. Deep valley surrounded by steep cliffs of 1000 m tall, laced with waterfalls. Low primary vegetation of small, stunted trees 1-2 m. tall, numerous pteridophytes, and Gunnera over saturated, rocky ground. PRESERVED_SPECIMEN David H. Lorence 5322 Kauai PTBG 7/23/1987
44 Potamogeton foliosus Raf. hala ula maulili rd., surety ranch llc kohala flume ditch, big island. Flowing water. PRESERVED_SPECIMEN l. crago, c. imada, t. erickson, c. puttock & k. uyehara 2005-119 Hawaii US 3/20/2005
45 Potamogeton foliosus Raf. Hala Ula Maulili Rd., Surety Ranch LLC Kohala Flume Ditch, Big Island. Flowing water. PRESERVED_SPECIMEN L. Crago, C. Imada, T. Erickson, C. Puttock & K. Uyehara 2005-119 Hawaii US 3/20/2005
46 Potamogeton foliosus Raf. Morgan Toledo Taro Farm, Waipio Valley, Big Island. In taro loi, rooted to the bottom mud, where water flows into pond. PRESERVED_SPECIMEN L. Crago, C. Imada, T. Erickson & C. Puttock 2005-092 Hawaii US 3/19/2005
47 Potamogeton foliosus Raf. kalihi valley. PRESERVED_SPECIMEN c. n. forbes 1516.o Oahu US 6/16/1909
48 Potamogeton foliosus Raf. kawaihau dist, se of mt pohakupele, on n fork of wailua river at irrigation ditch intake PRESERVED_SPECIMEN d. h. lorence & t. w. flynn 7113 Kauai US 11/4/1991
49 Potamogeton foliosus Raf. huleia river PRESERVED_SPECIMEN forbes, c.n. collector number: 739 k Kauai BISH 10/1/1916
50 Potamogeton foliosus Raf. hilo-wailoa river mauka of keawe bridge In water 2ft deep. PRESERVED_SPECIMEN stemmermann, r.l. luce, l. collector number: 7187 Hawaii BISH 8/14/1987
51 Potamogeton foliosus Raf. morgan toledo taro farm, waipio valley, big island. In taro loi, rooted to the bottom mud, where water flows into pond. PRESERVED_SPECIMEN l. crago, c. imada, t. erickson & c. puttock 2005-092 Hawaii US 3/19/2005
52 Potamogeton foliosus Raf. Honolii Taro patches. PRESERVED_SPECIMEN Forbes, C.N. s.n. Kauai BISH 8/1/1909
53 Potamogeton foliosus Raf. Morgan Toledo Taro Farm, Waipio Valley, Big Island, Hawaii In taro loi, rooted to the bottom mud, where water flows into pond. PRESERVED_SPECIMEN Crago, L.M. 2005-092 Hawaii BISH 3/19/2005
54 Potamogeton foliosus Raf. oahu PRESERVED_SPECIMEN mann, h. brigham, w.t. collector number: 21 Oahu BISH
55 Potamogeton foliosus Raf. W Maui, Lahaina District, Honokowai, Honokohau Ditch Submerged in ditch. PRESERVED_SPECIMEN Oppenheimer, H.L. H119917 Maui BISH 11/24/1999
56 Potamogeton foliosus Raf. n fork of wailua river Large colony with Vallisneria in Lihue Plantation's dam; associated with wet native grasses, guava, Melastoma, banana, kava, etc. PRESERVED_SPECIMEN herbst, d.r. collector number: 2937 Kauai BISH 3/27/1973
57 Potamogeton foliosus Raf. honolii Taro Patches. PRESERVED_SPECIMEN forbes, c.n. collector number: s.n. Kauai BISH 8/8/1909
58 Potamogeton foliosus Raf. Kailua; edge of Kaelepulu Pond W borders PRESERVED_SPECIMEN Neal, M.C. s.n. Oahu BISH 6/11/1940
59 Potamogeton foliosus Raf. Morgan Toledo Taro Farm, Waipio Valley, Big Island, Hawaii In taro loi, rooted to the bottom mud, where water flows into pond. PRESERVED_SPECIMEN Crago, L.M. Imada, C.; Erickson, T.; Puttock, C. Collector Number: 2005-092 Hawaii BISH 3/19/2005
60 Potamogeton foliosus Raf. Kalihi Valley Taro patches. PRESERVED_SPECIMEN Forbes, C.N. 1516 O Oahu BISH 6/16/1909
61 Potamogeton foliosus Raf. Hanakapiai, Napali Coast Small stream. PRESERVED_SPECIMEN St. John, H. 10935 Kauai BISH 12/31/1930
62 Potamogeton foliosus Raf. kalihi valley Taro patches. PRESERVED_SPECIMEN forbes, c.n. collector number: 1516 o Oahu BISH 6/16/1909
63 Potamogeton foliosus Raf. Hala Ula Maulili Rd., Surety Ranch LLC Kohala Flume Ditch, Big Island, Hawaii Open flume, attached to bottom, flowing water. PRESERVED_SPECIMEN Crago, L.M. Imada, C.; Erickson, T.; Puttock, C.; Uyehara, K. Collector Number: 2005-119 Hawaii BISH 3/20/2005
64 Potamogeton foliosus Raf. Headwaters of N fork of Wailua River, area called "The Blue Hole" or "The Crater" just E of Mt Waialeale and Kawaikini Deep valley surrounded by steep cliffs ca 1000 m high laced with waterfalls; low primary vegetation of small, stunted trees 1-2 m tall, numerous pteridophytes, and Gunnera over saturated, rocky ground. PRESERVED_SPECIMEN Lorence, D.H. 5322 Kauai BISH 7/23/1987
65 Potamogeton foliosus Raf. N fork of Wailua River Large colony with Vallisneria in Lihue Plantation's dam; associated with wet native grasses, guava, Melastoma, banana, kava, etc. PRESERVED_SPECIMEN Herbst, D.R. 2937 Kauai BISH 3/27/1973
66 Potamogeton foliosus Raf. pohakuhapai ditch trail, kamalomaloo PRESERVED_SPECIMEN st.john, h. cowan, r.s. collector number: 23127 Kauai BISH 12/29/1947
67 Potamogeton foliosus Raf. punaluu, kau district In brackish water. PRESERVED_SPECIMEN st.john, h. et al. collector number: 11321 Hawaii BISH 12/25/1931
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