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Info
Subfamily: Ehrhartoideae
Genus etymology: Ehrharta = honorific for Jakob Friederick Ehrhart (1742–1795)
Species etymology: calycina = "cup possessing" [Greek] refering to the cup-like glumes
Photosynthetic type: C3 (cool season)
Nativity: naturalized - intentional
First recorded in Hawaiʻi: 1977
Map
Inflorescence
Plant
Habit
Spikelets
Landscape
Description
Plants perennial; cespitose, often rhizomatous. Culms 30-75(180) cm, erect, glabrous. Sheaths finely striate, smooth, sometimes densely pubescent, with short hairs between the veins, usually purplish; auricles ciliate; ligules about 1 mm, lacerate, glabrous; blades 2-9 cm long, 2-7 mm wide, flat or involute, surfaces glabrous, sometimes scabridulous, margins hairy, wavy. Panicles 7-22 cm, sometimes partially enclosed in the upper leaf sheaths, sometimes nodding; pedicels curved or bent, sometimes straight. Spikelets 4-9 mm, U-shaped, purplish. Glumes subequal, 3-8 mm long, 3/4 - 9/10 the length of the spikelets, 7-veined; sterile lemmas hairy, smooth, lower sterile lemmas from 2/3 the length of to equaling the upper sterile lemmas, bases with earlike appendages, apices of both lemmas mucronate or shortly awned; bisexual lemmas slightly shorter than the upper sterile lemmas, 5-7-veined, glabrous or sparsely pubescent; paleas shorter than the lemmas, 2-veined; anthers 6, 2.5-3.5 mm. Caryopses about 3 mm. 2n = 24-28, 30.
(Description source: Barkworth, M.E., Capels, K.M. & Long, S. (eds.) 1993. Flora of North America, north of Mexico. Volume 24. Magnoliophyta: Commelinidae (in part): Poaceae, Part 1. Oxford University Press, New York. 911 pp. http://floranorthamerica.org/Ehrharta_calycina )