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Panicum ramosius

Hitchc. (1933)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Poales Family: Poaceae Genus: Panicum

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Description

Key Characters:

Growth Form: Cespitose annuals 10–60 cm tall.

Stems: Culms branched, glabrous or puberulent, the nodes villous.

Roots: Roots fibrous.

Leaves: Leaves simple. Alternate. Blades 4-10 cm long, 0.2-0.5 cm wide. Surfaces glabrous or scaberulous, rarely villous above. Veins parallel. Sheaths glabrous; ligule a row of hairs 1-2 mm long. Stipules absent.

Flowers: Panicles 5-15 cm long, terminal and axillary, rachis scabrous and villous, branches appressed, scabrous to short-pilose; spikelets 3-4.5 mm long, acuminate, lower 1/2 hidden by the pubescence; glumes as long as spikelet, equal, 3-5-nerved, lower 2/3 densely villous with hairs 1-2 mm long, apex puberulent to pubescent, internode between glumes distinct, ca. 0.3 mm long. First floret sterile, first lemma 2.5-2.7 mm long, slightly shorter than glumes, 7-nerved, pubescent toward apex, first palea rudimentary, ca. 0.3 mm long, hyaline; second floret 1.8-2 mm long, oblong-elliptic, glossy, smooth, the palea enclosed only at the margins. Anthers white, 0.8-1.1 mm long.

Fruit: Fruit a caryopsis

Ploidy:

Habitat: Relatively uncommon in exposed; open areas.

Elevation Range: 0–200 m.

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Molokai Endemic
Lana'i Endemic
Kaho'olawe Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: J. Bot. 71: 6 (1933)

Other References

Wagner et al. 1990:1571 (Mo, L, Ka); Hosaka 1866 BISH (Mo†, 1937); Hank Oppenheimer pers. obs./Hobdy 1972 BISH (L†, 1984)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Panicum ramosius Hulopoe Bay, just W, S coast of island Growing with Panicum torridum and P. sp. (with less pubescent spikelets than this); in open with Prosopis scrub with Sida, Gossypium, Boerhavia, and weedy species. Preserved_Specimen Stemmermann, R.L. 3714 Lanai BISH 1979-02-18
2 Panicum ramosius Hulopoe, 0.5 mi W On dry coastal plain. Preserved_Specimen Rare (one small patch). Hobdy, R.W. 1972 Lanai BISH 1984-02-19
3 Panicum ramosius On transect C4-secondary road that runs from the main road to the light house, W of Waikahalulu Bay In association with Prosopis, Chloris, and Tragus. Preserved_Specimen Char, W.P. 78.067 Kahoolawe BISH 1978-11-25
4 Panicum ramosius Mamaki and Paloa Point, along SW coast between Amongst the the more common Panicum torridum. Preserved_Specimen Occasional. Hobdy, R.W. 1350 Lanai BISH 1982-04-04
5 Panicum ramosius On transect C5-from Smuggler's Cove to beach with Cressa (this is the beach area 1 mi N of Kealaikahiki Pt.) In association with Prosopis, Gossypium tomentosum, Merremia, and Abutilon incanum. Preserved_Specimen Char, W.P. 78.078 Kahoolawe BISH 1978-11-26
6 Panicum ramosius Kaunolu Point Preserved_Specimen Kopf, K. Lanai BISH 1946-03-10
7 Panicum ramosius Manele Preserved_Specimen Munro, G.C. 569 Lanai BISH 1930-01-14
8 Panicum ramosius Lanai Preserved_Specimen Munro, G.C. Lanai BISH
9 Panicum ramosius Punakou Gulch In dry, rocky pasture. Preserved_Specimen Abundant. Hosaka, E.Y. 1866 Molokai BISH 1937-04-24
10 Panicum ramosius Manele Preserved_Specimen Munro, G.C. 301 Lanai BISH 1914-03-03
11 Panicum ramosius SE Lanai, Hulopoe Preserved_Specimen Herbst, D.R. 6306 Lanai BISH 1979-02-18
12 Panicum ramosius Manele Preserved_Specimen Munro, G.C. 28 Lanai BISH 1927-05-29
13 Panicum ramosius Manele Preserved_Specimen Munro, G.C. 211 Lanai BISH 1914-03-03
14 Panicum ramosius Au. Sugar Co. Preserved_Specimen Munro, G.C. 54 Molokai BISH 1903-02-15
15 Panicum ramosius Manele Preserved_Specimen Munro, G.C. 815 Lanai BISH 1930-01-10
16 Panicum ramosius Half mile north of Manele Bay Preserved_Specimen Corn, C. Lanai BISH 1979-02-18
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