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Eleocharis erythropoda

Steud. (1854)

This name is accepted

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

kohekohe, pīpīwai, spikerush

Description

Key Characters:

Growth Form: Perennials, rhizomes brown, slender.

Stems: Culms laxly tufted, slender, soft, terete (cylindrical), 9–60 cm tall, 0.5–1.5 mm in diameter.

Roots:

Leaves: Leaves simple. alternate, basal or nearly so reduced to bladeless sheaths Margins entire. Sheathing; sheaths membranous, pale, streaked with reddish brown especially toward base, 2–9 cm long, the orifice truncate. Stipules absent.

Flowers: Flowers in spikelets many–flowered, lanceoloid to narrowly ovoid, 8–17 mm long, 2–4 mm wide, gradually narrowed to an acute apex; glumes pale and tinged reddish brown on both sides of midnerve, thin, membranous, lanceolate–elliptic 2–3 mm long, 1.2–1.3 mm wide, gradually narrowed to a subobtuse apex, midnerve yellowish green, ending below the glume apex. Flowers bisexual (perfect). Calyx of 1–4 bristles, slender, slightly longer than the achene, sometimes absent. Corolla (petals) absent. Ovary superior; styles base conical, spongy, ⅓–⅔ as wide as achene; stigmas 2.

Fruit: Achenes dark yellow; smooth; narrowly obovate; lenticular; 1–1.5 mm long; 0.7–0.9 mm wide. Seeds 1; seed coat thin; free from pericarp; embryo basal; endosperm abundant.

Ploidy: 2n = 18

Habitat: Occurring along margins of marshes and ponds.

Elevation Range: 0–250 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Indigenous

Island Status

Ni'ihau(Incl. Lehua) Indigenous
O'ahu Indigenous
Kaho'olawe Indigenous

Dispersal Agents


Pollinators

Bibliography

Name Published In: Syn. Pl. Glumac. 2: 76 (1854)

Other References

Wagner et al. 1990:1402 (Ni, O, Ka)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Eleocharis erythropoda Steud. Niihau PRESERVED_SPECIMEN Judd, Rev. H. s.n. Niihau BISH 9/1/1950
2 Eleocharis erythropoda Steud. Loe Lake, 2 miles north of Puuwai PRESERVED_SPECIMEN St. John, H. 23598 Niihau BISH 3/30/1949
3 Eleocharis erythropoda Steud. Lua Kealialalo, crater with standing water in center of western third of island Sedges numerous but restricted to edge of lake in center of crater. Surrounding vegetation is composed of Prosopis trees with a number of introduced plants as ground cover. PRESERVED_SPECIMEN Cuddihy, L.W. 354 Kahoolawe BISH 4/22/1980
4 Eleocharis erythropoda Steud. Lua Kealialalo, crater with standing water in center of western third of island Restricted to edge of lake in center of crater. Surrounding vegetation is composed of Prosopis pallida trees with a number of introduced plants as ground cover. PRESERVED_SPECIMEN Cuddihy, L.W. 354 Kahoolawe BISH 4/22/1980
5 Eleocharis erythropoda Steud. Kaimuki PRESERVED_SPECIMEN Forbes, C.N. 2360.O Oahu BISH 3/26/1916
6 Eleocharis erythropoda Steud. Lua Kealialalo, crater in western third of island. PRESERVED_SPECIMEN Cuddihy, L. W.; Char, W. P. 354 Kahoolawe US 4/22/1980
7 Eleocharis erythropoda Steud. Kaimuki PRESERVED_SPECIMEN Forbes, C. N. 2360.O. Oahu US 3/26/2016
8 Eleocharis erythropoda Steud. loe lake, 2 miles north of puuwai, PRESERVED_SPECIMEN st.john, h. collector number: 23598 Niihau BISH 3/30/1949
9 Eleocharis erythropoda Steud. lua kealialalo, crater in western third of island. PRESERVED_SPECIMEN l. cuddihy & w. char 354 Kahoolawe US 4/22/1980
10 Eleocharis erythropoda Steud. kaimuki PRESERVED_SPECIMEN c. n. forbes 2360.o. Oahu US 3/26/1916
11 Eleocharis erythropoda Steud. lua kealialalo, crater with standing water in center of western third of island Restricted to edge of lake in center of crater. Surrounding vegetation is composed of Prosopis pallida trees with a number of introduced plants as ground cover. PRESERVED_SPECIMEN cuddihy, l.w. char, w.p. collector number: 354 Kahoolawe BISH 4/22/1980
12 Eleocharis erythropoda Steud. lua kealialalo, crater with standing water in center of western third of island Sedges numerous but restricted to edge of lake in center of crater. Surrounding vegetation is composed of Prosopis trees with a number of introduced plants as ground cover. PRESERVED_SPECIMEN cuddihy, l.w. char, w.p. collector number: 354 Kahoolawe BISH 4/22/1980
13 Eleocharis erythropoda Steud. Waimea, Waimea Falls Park, cultivated sedge, acc. no. 90p63 Clumping sedge 2 ft. tall growing among rocks on bank of water feature. Original material from Loe Lake, Niihau. PRESERVED_SPECIMEN Orr, D. s.n. Oahu BISH 8/16/2000
14 Eleocharis erythropoda Steud. Lua Kealialalo, crater with standing water in center of western third of island Restricted to edge of lake in center of crater. Surrounding vegetation is composed of Prosopis pallida trees with a number of introduced plants as ground cover. PRESERVED_SPECIMEN Cuddihy, L.W. Char, W.P. Collector Number: 354 Kahoolawe BISH 4/22/1980
15 Eleocharis erythropoda Steud. kaimuki PRESERVED_SPECIMEN forbes, c.n. collector number: 2360.o Oahu BISH 3/26/1916
16 Eleocharis erythropoda Steud. Niihau PreservedSpecimen Judd, Rev. H. Collector Number: s.n. Niihau BISH Specimen
17 Eleocharis erythropoda Steud. Loe Lake, 2 miles north of Puuwai, PreservedSpecimen St. John, H. Collector Number: 23598 Niihau BISH Specimen 3/30/1949
18 Eleocharis erythropoda Steud. niihau PRESERVED_SPECIMEN judd, rev. h. collector number: s.n. Niihau BISH 9/1/1950
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