img

Vallisneria americana

Michx. (1803)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Alismatales Family: Hydrocharitaceae Genus: Vallisneria

eelgrass, tapegrass, val

img

Description

Key Characters:

Growth Form:

Stems:

Roots:

Leaves:

Flowers:

Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Images

img

Uses and Culture

USES

  • Yes

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Naturalized
O'ahu Only found in cultivation
Maui Naturalized
Hawai'i Not in flora

Dispersal Agents


Pollinators

Bibliography

Name Published In: Fl. Bor.-Amer. 2: 220 (1803)

Other References

Wagner et al. 1990:1442 (K?, H? [possibly nat. in waterways, e.g., Wailua River, and Wailoa estuary, Hilo, H]); Staples et al. 2003:13 (NEWNAT/K, DESCR); Staples & Herbst 2005:667 (DESCR); Oppenheimer 2008:29 (WM)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Vallisneria americana Bishop Museum Cultivated in aquarium. Preserved_Specimen Suehiro, A. Oahu BISH 1933-01-23
2 Vallisneria americana Kahuku Preserved_Specimen Barnes, Mrs.S. Oahu BISH 1945-04-26
3 Vallisneria americana unknown Preserved_Specimen BISH
4 Vallisneria americana W Maui, Wailuku District, N of Ooawa Kilika Gulch, Growing in Waihee Ditch In shallow, flowing water. Also with Potamogeton. Preserved_Specimen Oppenheimer, H.L. 120514 Maui BISH 2005-12-21
5 Vallisneria americana Koloa District: Lawai Valley. National Tropical Botanical Garden Apparently naturalized in the Lawai Stream near the Bamboo Bridge area. Preserved_Specimen Submerged herb; leaves glossy pale green with whitish bases; inflorescence long-trailing, glossy whitish green, flowers floating on surface, sepals pale green, petals dull whitish. Spreading by stolons. Flynn, T.W. 6196 Kauai BISH 1997-08-12
6 Vallisneria americana Hanapepe, Awana Road Collected from ditch along the West side of the road, in cold cledar fast moving cement ditch. Partial sun. Associated w? Leucaena, Syzygium cumini, Urochola maxima, and Epipremnum pinnatum around the ditch Preserved_Specimen Submerged. Pods flat, brown w/ ridge near top. Blade green above lighter green below, flw yellow-green Tangalin, N. 1606 Kauai BISH 2007-10-09
7 Vallisneria americana N fork of the Wailua River behind dam at mouth of Iliiliula N Wailua Ditch intake Preserved_Specimen Flynn, T.W. 897 Kauai BISH 1984-07-18
8 Vallisneria americana Honolulu Preserved_Specimen Rooted plants sold individually; lvs med grn w. reddish tinge; immature fruits drk grn. Hoe, W.J. 563 Oahu BISH 1990-03-06
9 Vallisneria americana Kahuku Cultivated in stream. Preserved_Specimen Female flowers. Kahawagashi, Mrs. Oahu BISH 1941-05-04
10 Vallisneria americana Honolulu International Airport; aquatic plants imported from Singapore Preserved_Specimen Rooted plants less than 12' tall; lvs flat, beetlike, with tiny teeth at the apex; peduncles of female flws/frts coiled. Some runners with young plants present. Hoe, W.J. 505 Oahu BISH 1989-11-14
11 Vallisneria americana Koolaupoko District, Kamooalii Stream Sides of stream channelized, bottome natural substrate. Inundated in flowing water. Preserved_Specimen Englund, R. Oahu BISH 1999-03-18
12 Vallisneria americana Purchased in Maunakea Market Place, Maunakea St, Honolulu Preserved_Specimen Herbst, D.R. 9637 Oahu BISH 1993-12-11
13 Vallisneria americana Honolulu: Honolulu International Airport, USDA inspection service Preserved_Specimen Rooted plants w. basal lvs, blade strap-like, deep grn; ammature frt solitary on long curving (but not spirally coiled) pedicel. Hoe, W.J. 559 Oahu BISH 1990-02-06
Back to Top