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Fimbristylis aestivalis

(Retz.) Vahl (1805)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Poales Family: Cyperaceae Genus: Fimbristylis

Description

Key Characters:

Growth Form: Small annuals.

Stems: Culms tufted, 3–12 cm tall, 0.3–0.5 mm in diameter.

Roots: Fibrous root system.

Leaves: Leaves simple. Blades linear–filiform, much shorter than the culm, 0.4–1 mm wide. Apex gradually acuminate. Surfaces glabrate to sparsely pilose. Margins entire. Sheathing; sheaths pale to yellowish brown, 5–15 mm long, usually pubescent; ligule absent. Stipules absent.

Flowers: Flowers in inflorescences compound, lax, 2–4 cm long and wide, rays 3–7, filiform, 0.5–2.7 cm long, each one terminated by a single spikelet; involucral bracts 2–3, shorter than inflorescence, pilose or glabrate; spikelets 8–15–flowered, ovoid to narrowly ovoid, 2.5–5 mm long, 1–1.5 mm wide, subacute; glumes yellowish brown, membranous, ovate, 1–1.2 mm long, the keel green, apex mucronulate. Flowers bisexual (perfect). Corolla (petals) absent. Stamen 1. Ovary superior; styles filiform, glabrous at base, occasionally ciliolate below stigmas; stigmas 2.

Fruit: Achenes yellow; obovoid; biconvex; 0.6–0.7 mm long; faintly cancellate; apex rounded; base short–stipitate. Seeds 1; seed coat thin; free from pericarp; embryo basal; endosperm abundant.

Ploidy: 2n = 10

Habitat: Naturalized in ponds and taro fields.

Elevation Range: ca. 3 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Naturalized
O'ahu Potentially naturalizing
Hawai'i Naturalized

Dispersal Agents


Pollinators

Bibliography

Name Published In: Enum. Pl. Obs. 2: 288 (1805)

Other References

Wagner et al. 1990:1404 (K); Oppenheimer & Bartlett 2002:7 (H); Faccenda 2023b:79 (O)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Fimbristylis aestivalis Hanalei Common along edges of taro paddies. PRESERVED_SPECIMEN Herbst, D.R. 6250 Kauai BISH 9/12/1978
2 Fimbristylis aestivalis Hanalei Valley; U. S. Fish & Wildlife Reservation In & around taro patches. PRESERVED_SPECIMEN Herbst, D.R. 5953 Kauai BISH 7/18/1977
3 Fimbristylis aestivalis S Hilo District, Waiakea Roadside. PRESERVED_SPECIMEN Oppenheimer, H.L. Collector Number: H40020 Hawaii BISH 4/21/2000
4 Fimbristylis aestivalis Lawai Valley; PTBG Growing in the bottom of drained pond area. PRESERVED_SPECIMEN Flynn, T. 641 Kauai BISH 11/7/1983
5 Fimbristylis aestivalis Waita Reservoir, Koloa PRESERVED_SPECIMEN Herbst, D.R. 6102 Kauai BISH 5/12/1978
6 Fimbristylis aestivalis hanalei valley; u. s. fish & wildlife reservation Along roadways. PRESERVED_SPECIMEN herbst, d.r. collector number: 5953 Oahu BISH 7/18/1977
7 Fimbristylis aestivalis hilo lama PRESERVED_SPECIMEN oppenheimer, h.l. collector number: h40509 Molokai BISH 4/26/2005
8 Fimbristylis aestivalis Hilo. Near sea level. In waste area. PRESERVED_SPECIMEN Hank Oppenheimer H40509 Hawaii PTBG 4/26/2005
9 Fimbristylis aestivalis Hilo, Hawaii Growing in the wet lawn of Joan Yoshioka residence, cinder soil. PRESERVED_SPECIMEN Imada, C.T. Collector Number: 2005-231 Hawaii BISH 11/13/2005
10 Fimbristylis aestivalis Waita Reservoir. Mud flats along west side of reservoir. PRESERVED_SPECIMEN Tim Flynn 4268 Kauai PTBG 10/23/1990
11 Fimbristylis aestivalis Waita Reservoir, Koloa PRESERVED_SPECIMEN Derral Herbst 6102 Kauai PTBG 5/12/1978
12 Fimbristylis aestivalis hanalei Common along edges of taro paddies. PRESERVED_SPECIMEN herbst, d.r. collector number: 6250 Kauai BISH 9/12/1978
13 Fimbristylis aestivalis Koloa Dist.; Waita Reservoir, west side Mud flats; with Fimbristylis dichotoma & Dopatrium sp. PRESERVED_SPECIMEN Flynn, T. 4268 Kauai BISH 10/23/1990
14 Fimbristylis aestivalis Hilo, Hawaii Growing in the wet lawn of Joan Yoshioka residence, cinder soil. PRESERVED_SPECIMEN Imada, C.T. 2005-231 Hawaii BISH 11/13/2005
15 Fimbristylis aestivalis waita reservoir, koloa PRESERVED_SPECIMEN d. r. herbst 6102 Kauai US 5/12/1978
16 Fimbristylis aestivalis Lawai Valley. PTBG. Growing in the bottom of drained pond area. PRESERVED_SPECIMEN Tim Flynn 641 Kauai PTBG 11/7/1983
17 Fimbristylis aestivalis Koloa Dist., Waita Reservoir, along W side of reservoir PRESERVED_SPECIMEN Flynn, T. W.; Ragone, D. 4268 Kauai US 12/23/1990
18 Fimbristylis aestivalis hanalei river, kauai PRESERVED_SPECIMEN d. r. herbst 5914 Kauai US 7/18/1977
19 Fimbristylis aestivalis Near Waita Reservoir, below Koloa & Poipu, along dirt road in sugar cane fields. PRESERVED_SPECIMEN Wagner, W. L.; Takeuchi, W. N.; Imada, C. 6026 Kauai US 4/8/1988
20 Fimbristylis aestivalis Hanalei, Kauai PRESERVED_SPECIMEN Herbst, D. R. 6250 Kauai US 9/12/1978
21 Fimbristylis aestivalis Keolahou, small forest patch within property. PRESERVED_SPECIMEN Wagner, W. L.; Lorence, D. H.; Wood, K. R.; Burney, D. 7027 Hawaii US 3/19/2005
22 Fimbristylis aestivalis hanalei, kauai PRESERVED_SPECIMEN d. r. herbst 6250 Kauai US 9/12/1978
23 Fimbristylis aestivalis Keolahou, small forest patch within property. PRESERVED_SPECIMEN W. L. Wagner, D. H. Lorence, K. R. Wood & D. Burney 7027 Hawaii US 3/19/2005
24 Fimbristylis aestivalis Lawai Valley. P.T.B.G. PRESERVED_SPECIMEN Flynn, T. W. 641 Kauai US 11/7/1983
25 Fimbristylis aestivalis Waita Reservoir, Koloa PRESERVED_SPECIMEN Herbst, D. R. 6102 Kauai US 5/12/1978
26 Fimbristylis aestivalis hilo PRESERVED_SPECIMEN c. imada 2005-231 Hawaii US 11/13/2005
27 Fimbristylis aestivalis lawai valley. p.t.b.g. PRESERVED_SPECIMEN t. w. flynn 641 Kauai US 11/7/1983
28 Fimbristylis aestivalis Hanalei River, Kauai PRESERVED_SPECIMEN Herbst, D. R. 5914 Kauai US 7/18/1977
29 Fimbristylis aestivalis koloa dist., waita reservoir, along w side of reservoir PRESERVED_SPECIMEN t. w. flynn & d. ragone 4268 Hawaii US 12/23/1990
30 Fimbristylis aestivalis koloa dist.; waita reservoir, west side PRESERVED_SPECIMEN flynn, t. ragone, d. collector number: 4268 Oahu BISH 10/23/1990
31 Fimbristylis aestivalis near waita reservoir, below koloa & poipu, along dirt road in sugar cane fields. PRESERVED_SPECIMEN w. l. wagner, w. n. takeuchi & c. imada 6026 Oahu US 4/8/1988
32 Fimbristylis aestivalis keolahou, small forest patch within property. PRESERVED_SPECIMEN w. l. wagner, d. h. lorence, k. r. wood & d. burney 7027 Oahu US 3/19/2005
33 Fimbristylis aestivalis Hilo PRESERVED_SPECIMEN C. Imada 2005-231 Hawaii US 11/13/2005
34 Fimbristylis aestivalis Koloa Dist.; Waita Reservoir, below Koloa & Poipu Along dirt road in sugar cane fields. PRESERVED_SPECIMEN Wagner, W.L. 6026 Kauai BISH 4/8/1988
35 Fimbristylis aestivalis koloa dist.; waita reservoir, below koloa & poipu Along dirt road in sugar cane fields. PRESERVED_SPECIMEN wagner, w.l. takeuchi, w.; imada, c. collector number: 6026 Kauai BISH 4/8/1988
36 Fimbristylis aestivalis lawai valley; ptbg Growing in the bottom of drained pond area. PRESERVED_SPECIMEN flynn, t. collector number: 641 Kauai BISH 11/7/1983
37 Fimbristylis aestivalis Hilo In waste area. PRESERVED_SPECIMEN Oppenheimer, H.L. H40509 Hawaii BISH 4/26/2005
38 Fimbristylis aestivalis hilo, hawaii inner reef flat PRESERVED_SPECIMEN imada, c.t. collector number: 2005-231 Oahu BISH 11/13/2005
39 Fimbristylis aestivalis s hilo district, waiakea Roadside. PRESERVED_SPECIMEN oppenheimer, h.l. collector number: h40020 Hawaii BISH 4/21/2000
40 Fimbristylis aestivalis S Hilo District, Waiakea Roadside. PRESERVED_SPECIMEN Oppenheimer, H.L. H40020 Hawaii BISH 4/21/2000
41 Fimbristylis aestivalis waita reservoir, koloa PRESERVED_SPECIMEN herbst, d.r. collector number: 6102 Kauai BISH 5/12/1978
42 Fimbristylis aestivalis S Hilo District, Waiakea PRESERVED_SPECIMEN W. L. Wagner, D. H. Lorence, K. R. Wood & D. Burney 7027 Hawaii HAPI 3/19/2005
43 Fimbristylis aestivalis W Maui, Lahaina District, Honokowai Valley PRESERVED_SPECIMEN C. Imada 2005-231 Maui HAPI 11/13/2005
44 Fimbristylis aestivalis Hanalei Common along edges of taro paddies. PRESERVED_SPECIMEN Herbst, D.R. 6250 Kauai BISH 9/12/1978
45 Fimbristylis aestivalis Hanalei Valley; U. S. Fish & Wildlife Reservation In & around taro patches. PRESERVED_SPECIMEN Herbst, D.R. 5953 Kauai BISH 7/18/1977
46 Fimbristylis aestivalis S Hilo District, Waiakea Roadside. PRESERVED_SPECIMEN Oppenheimer, H.L. Collector Number: H40020 Hawaii BISH 4/21/2000
47 Fimbristylis aestivalis Lawai Valley; PTBG Growing in the bottom of drained pond area. PRESERVED_SPECIMEN Flynn, T. 641 Kauai BISH 11/7/1983
48 Fimbristylis aestivalis Waita Reservoir, Koloa PRESERVED_SPECIMEN Herbst, D.R. 6102 Kauai BISH 5/12/1978
49 Fimbristylis aestivalis hanalei valley; u. s. fish & wildlife reservation Along roadways. PRESERVED_SPECIMEN herbst, d.r. collector number: 5953 Oahu BISH 7/18/1977
50 Fimbristylis aestivalis hilo lama PRESERVED_SPECIMEN oppenheimer, h.l. collector number: h40509 Molokai BISH 4/26/2005
51 Fimbristylis aestivalis Hilo. Near sea level. In waste area. PRESERVED_SPECIMEN Hank Oppenheimer H40509 Hawaii PTBG 4/26/2005
52 Fimbristylis aestivalis Hilo, Hawaii Growing in the wet lawn of Joan Yoshioka residence, cinder soil. PRESERVED_SPECIMEN Imada, C.T. Collector Number: 2005-231 Hawaii BISH 11/13/2005
53 Fimbristylis aestivalis Waita Reservoir. Mud flats along west side of reservoir. PRESERVED_SPECIMEN Tim Flynn 4268 Kauai PTBG 10/23/1990
54 Fimbristylis aestivalis Waita Reservoir, Koloa PRESERVED_SPECIMEN Derral Herbst 6102 Kauai PTBG 5/12/1978
55 Fimbristylis aestivalis hanalei Common along edges of taro paddies. PRESERVED_SPECIMEN herbst, d.r. collector number: 6250 Kauai BISH 9/12/1978
56 Fimbristylis aestivalis Koloa Dist.; Waita Reservoir, west side Mud flats; with Fimbristylis dichotoma & Dopatrium sp. PRESERVED_SPECIMEN Flynn, T. 4268 Kauai BISH 10/23/1990
57 Fimbristylis aestivalis Hilo, Hawaii Growing in the wet lawn of Joan Yoshioka residence, cinder soil. PRESERVED_SPECIMEN Imada, C.T. 2005-231 Hawaii BISH 11/13/2005
58 Fimbristylis aestivalis waita reservoir, koloa PRESERVED_SPECIMEN d. r. herbst 6102 Kauai US 5/12/1978
59 Fimbristylis aestivalis Lawai Valley. PTBG. Growing in the bottom of drained pond area. PRESERVED_SPECIMEN Tim Flynn 641 Kauai PTBG 11/7/1983
60 Fimbristylis aestivalis Koloa Dist., Waita Reservoir, along W side of reservoir PRESERVED_SPECIMEN Flynn, T. W.; Ragone, D. 4268 Kauai US 12/23/1990
61 Fimbristylis aestivalis hanalei river, kauai PRESERVED_SPECIMEN d. r. herbst 5914 Kauai US 7/18/1977
62 Fimbristylis aestivalis Near Waita Reservoir, below Koloa & Poipu, along dirt road in sugar cane fields. PRESERVED_SPECIMEN Wagner, W. L.; Takeuchi, W. N.; Imada, C. 6026 Kauai US 4/8/1988
63 Fimbristylis aestivalis Hanalei, Kauai PRESERVED_SPECIMEN Herbst, D. R. 6250 Kauai US 9/12/1978
64 Fimbristylis aestivalis Keolahou, small forest patch within property. PRESERVED_SPECIMEN Wagner, W. L.; Lorence, D. H.; Wood, K. R.; Burney, D. 7027 Hawaii US 3/19/2005
65 Fimbristylis aestivalis hanalei, kauai PRESERVED_SPECIMEN d. r. herbst 6250 Kauai US 9/12/1978
66 Fimbristylis aestivalis Keolahou, small forest patch within property. PRESERVED_SPECIMEN W. L. Wagner, D. H. Lorence, K. R. Wood & D. Burney 7027 Hawaii US 3/19/2005
67 Fimbristylis aestivalis Lawai Valley. P.T.B.G. PRESERVED_SPECIMEN Flynn, T. W. 641 Kauai US 11/7/1983
68 Fimbristylis aestivalis Waita Reservoir, Koloa PRESERVED_SPECIMEN Herbst, D. R. 6102 Kauai US 5/12/1978
69 Fimbristylis aestivalis hilo PRESERVED_SPECIMEN c. imada 2005-231 Hawaii US 11/13/2005
70 Fimbristylis aestivalis lawai valley. p.t.b.g. PRESERVED_SPECIMEN t. w. flynn 641 Kauai US 11/7/1983
71 Fimbristylis aestivalis Hanalei River, Kauai PRESERVED_SPECIMEN Herbst, D. R. 5914 Kauai US 7/18/1977
72 Fimbristylis aestivalis koloa dist., waita reservoir, along w side of reservoir PRESERVED_SPECIMEN t. w. flynn & d. ragone 4268 Hawaii US 12/23/1990
73 Fimbristylis aestivalis koloa dist.; waita reservoir, west side PRESERVED_SPECIMEN flynn, t. ragone, d. collector number: 4268 Oahu BISH 10/23/1990
74 Fimbristylis aestivalis near waita reservoir, below koloa & poipu, along dirt road in sugar cane fields. PRESERVED_SPECIMEN w. l. wagner, w. n. takeuchi & c. imada 6026 Oahu US 4/8/1988
75 Fimbristylis aestivalis keolahou, small forest patch within property. PRESERVED_SPECIMEN w. l. wagner, d. h. lorence, k. r. wood & d. burney 7027 Oahu US 3/19/2005
76 Fimbristylis aestivalis Hilo PRESERVED_SPECIMEN C. Imada 2005-231 Hawaii US 11/13/2005
77 Fimbristylis aestivalis Koloa Dist.; Waita Reservoir, below Koloa & Poipu Along dirt road in sugar cane fields. PRESERVED_SPECIMEN Wagner, W.L. 6026 Kauai BISH 4/8/1988
78 Fimbristylis aestivalis koloa dist.; waita reservoir, below koloa & poipu Along dirt road in sugar cane fields. PRESERVED_SPECIMEN wagner, w.l. takeuchi, w.; imada, c. collector number: 6026 Kauai BISH 4/8/1988
79 Fimbristylis aestivalis lawai valley; ptbg Growing in the bottom of drained pond area. PRESERVED_SPECIMEN flynn, t. collector number: 641 Kauai BISH 11/7/1983
80 Fimbristylis aestivalis Hilo In waste area. PRESERVED_SPECIMEN Oppenheimer, H.L. H40509 Hawaii BISH 4/26/2005
81 Fimbristylis aestivalis hilo, hawaii inner reef flat PRESERVED_SPECIMEN imada, c.t. collector number: 2005-231 Oahu BISH 11/13/2005
82 Fimbristylis aestivalis s hilo district, waiakea Roadside. PRESERVED_SPECIMEN oppenheimer, h.l. collector number: h40020 Hawaii BISH 4/21/2000
83 Fimbristylis aestivalis S Hilo District, Waiakea Roadside. PRESERVED_SPECIMEN Oppenheimer, H.L. H40020 Hawaii BISH 4/21/2000
84 Fimbristylis aestivalis waita reservoir, koloa PRESERVED_SPECIMEN herbst, d.r. collector number: 6102 Kauai BISH 5/12/1978
85 Fimbristylis aestivalis S Hilo District, Waiakea PRESERVED_SPECIMEN W. L. Wagner, D. H. Lorence, K. R. Wood & D. Burney 7027 Hawaii HAPI 3/19/2005
86 Fimbristylis aestivalis W Maui, Lahaina District, Honokowai Valley PRESERVED_SPECIMEN C. Imada 2005-231 Maui HAPI 11/13/2005
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