|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|Family: Poaceae (Gramineae)||View Description||Dichotomous Key|
|Genus: Swallenia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Swallenia alexandrae (Swallen) Soderstr. & H.F. Decker
Habit: Perennial herb, tufted, from thick, scaly rhizomes; nodes +- woolly. Stem: ascending to erect, branching, 1.5--3.5 dm, stiff, ridged, generally glabrous; sheath open, margin short-hairy. Leaf: generally cauline, awl-like, strongly divergent; ligule +- 1 mm, densely hairy, tufts of soft hairs at collar; blade 5--14 cm, 3--6 mm wide, stiff, sharp-pointed, strongly veined; generally deciduous at collar. Inflorescence: panicle-like, 4--10 cm; branches spike-like, short, appressed; axis short-hairy. Spikelet: < 1.5 cm, persistent; glumes 9--14 mm, +- equal, > florets, wide narrowing to acuminate tip, glabrous, 7--11-veined, awn 0; florets 3--7; lemma 7--9 mm, back rounded, lower margin, mid vein, callus soft-wavy-hairy, 5--7-veined, awn 0; palea +- = lemma, margin hairs like lemma. Fruit: 4 mm, 2 mm wide, falling from floret. Chromosomes: 2n=20.
Ecology: Sand dunes (locally abundant); Elevation: 900--1200 m. Bioregional Distribution: DMoj (Eureka Valley, ne Inyo Co.). Flowering Time: Apr--Jun
Synonyms: Ectosperma alexandrae Swallen
eFlora Treatment Author: Hester L. Bell & James P. Smith, Jr.
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Swallenia
Next taxon: Torreyochloa
Citation for this treatment: Hester L. Bell & James P. Smith, Jr. 2016. Swallenia alexandrae, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=45871, accessed on September 26, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 26, 2016.