Aristida adscensionis

L. (1753)

This name is accepted

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

Description

Key Characters:

Growth Form: Annual, or perennial herb.

Stems: Culms erect, or geniculately ascending, or decumbent, 10–100 cm long. Culm-internodes distally glabrous. Culm-nodes glabrous.

Roots: Roots fibrous.

Leaves: Leaves simple. Alternate. Blades flat, or conduplicate; 5–20 cm long; 1–3 mm wide. Ligule a fringe of hairs. Veins parallel. Blades sheathing. Stipules absent.

Flowers: Panicle open, or contracted; elliptic; 10–30 cm long; evenly furnished, or contracted about primary branches. Spikelets solitary. Fertile spikelets pedicelled. Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6–12 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5 mm long; pilose; obtuse. Glumes persistent; similar; reaching apex of florets, or shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 4–7 mm long; 0.8 length of upper glume; scarious; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex emarginate, or acute; muticous, or mucronate. Upper glume lanceolate; 5–10 mm long; 0.75–1 length of adjacent fertile lemma; scarious; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex dentate; 2 -fid; mucronate. Fertile lemma elliptic; laterally compressed; 5–13 mm long; coriaceous; keeled; 3 -veined. Lemma midvein scabrous. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn with 7–25 mm long limb; persistent. Lateral lemma awns 5–25 mm long; subequal to principal, or shorter than principal. Palea 0.2 length of lemma; without keels. Stamen 3.

Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Synonyms (137)

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Molokai Naturalized
Hawai'i Naturalized

Dispersal Agents


Pollinators

Specimens

Bibliography

Name Published In: Sp. Pl.: 82 (1753)

Other References

Wagner et al. 1990:1482 (O?, Mo?, H? [adventive], DESCR); Herbst & Clayton 1998:19 (O voucher unidentifiable to species) [note: BISH spms. confirm naturalization on H]

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Aristida adscensionis L. kawaihae; illegible. PRESERVED_SPECIMEN o. degener 31102 USF 12/20/1966
2 Aristida adscensionis L. Kona, between Kona Village Resort and Queen Kaahumanu Hwy PRESERVED_SPECIMEN Imada, C.T. 94-1 Hawaii BISH 2/25/1994
3 Aristida adscensionis L. South Kohala Dist. Waikoloa Ahupuaa, off Parker Ranch road 4/5 mile north of Kamakoa Erect annual grass. Occasional. PRESERVED_SPECIMEN Herbst, D.R. 9818 Hawaii BISH 2/13/1997
4 Aristida adscensionis L. south kohala dist. waikoloa ahupuaa, off parker ranch road 4/5 mile north of kamakoa PRESERVED_SPECIMEN herbst, d.r. collector number: 9818 BISH 2/12/1997
5 Aristida adscensionis L. kona, between kona village resort and queen kaahumanu hwy Growing in the Styphelia scrub community. PRESERVED_SPECIMEN imada, c.t. motley, t.; char, w.p. collector number: 94-1 Maui BISH 2/25/1994
6 Aristida adscensionis L. Kohala District Near Kawaihai Roadside weed of dry area PRESERVED_SPECIMEN Herbst, D.R. 5312 Hawaii BISH 5/19/1975
7 Aristida adscensionis L. South Kohala District About 0.4 miles east of Waikoloa Village Associated with Prosopis and Sida PRESERVED_SPECIMEN Funk, E.J. s.n. Hawaii BISH 1/28/1991
8 Aristida adscensionis L. East Maui, Hana District, Haou OBSERVATION Curtis Daehler Maui HAPI 3/21/2007
9 Aristida adscensionis L. american sugar co PRESERVED_SPECIMEN munro, g.c. collector number: 128 Molokai BISH 5/1/1903
10 Aristida adscensionis L. Kawahihae Rd Dry location. PRESERVED_SPECIMEN Christensen, Mrs.C. 1 Hawaii BISH 11/14/1963
11 Aristida adscensionis L. American Sugar Co PRESERVED_SPECIMEN Munro, G.C. 128 Molokai BISH 5/1/1903
12 Aristida adscensionis L. South Kohala Dist. Waikoloa Ahupuaa, off Parker Ranch road 4/5 mile north of Kamakoa Erect annual grass. Occasional. PRESERVED_SPECIMEN Herbst, D.R. Collector Number: 9818 Hawaii BISH 2/12/1997
13 Aristida adscensionis L. south kohala district about 0.4 miles east of waikoloa village Associated with Prosopis and Sida PRESERVED_SPECIMEN funk, e.j. collector number: s.n. Hawaii BISH 1/28/1991
14 Aristida adscensionis L. kohala district near kawaihai PRESERVED_SPECIMEN herbst, d.r. spence, g. collector number: 5312 Maui BISH 5/19/1975
15 Aristida adscensionis L. kawahihae rd Dry location. PRESERVED_SPECIMEN christensen, mrs.c. collector number: 1 Hawaii BISH 11/14/1963
16 Aristida adscensionis L. Puu Kohola Heiau, near Waimea growing in and around heiau. Arid. Assoc w/ Sida, Ipomea, Chloris. Disturbed area. PRESERVED_SPECIMEN Herbst, D.R. 229 Hawaii BISH 8/10/1966
17 Aristida adscensionis L. PRESERVED_SPECIMEN O Degener|I Degener AK 12/20/1966