TREATMENT FROM THE JEPSON MANUAL (1993) |
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Jepson Interchange (more information) |
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©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY |
Introduced |
Stem 410 dm
Leaf: sheath glabrous; blade 12 mm wide
Inflorescence 2030 cm
Spikelet: glumes 68 mm, ± equal; floret 4.55.5 mm; callus blunt; lemma tip hairs 0.81.7 mm, > body hairs, awn 1520 mm, bent twice
Ecology: Disturbed sites
Elevation: < 300 m.
Bioregional distribution: nw San Joaquin Valley (eradicated from San Joaquin Valley in Fresno Co.), n South Coast
Distribution outside California: native to Argentina
Synonyms: Stipa b. Godr
Weedy.
Native |
Stem generally robust
Leaf: blade < 19 cm, < 9 mm wide, glabrous or sparsely short-hairy
Central spikelet: glumes 717 mm, generally straight with age; lemma awn < 4.5 mm; anthers 13.5 mm
Chromosomes: 2n=28,42
Ecology: Habitat and range of sp
Elevation:
Bioregional distribution: California (except Desert)
Flowering time: MayAug
Introduced |
Annual
Stem 15 dm, bent at base or erect; nodes glabrous
Leaf: basal sheaths ± hairy, appendages < 2 mm or 0; blade 16 mm wide
Inflorescence 1.57 cm, 520 mm wide, green to purple, breaking apart at nodes in fruit; central and lateral spikelets falling together
Central spikelet: glumes 1426 mm, not flat at base, ± straight with age; floret 58 mm; lemma awn 618 mm
Lateral spikelets sterile; glumes 1024 mm, rounded to slightly flat; floret < 5 mm; lemma awn 38 mm
Ecology: Dry to moist, disturbed sites
Elevation: < 1500 m.
Bioregional distribution: California (except mtns)
Distribution outside California: to British Columbia, Idaho, Arizona; native to Europe
Flowering time: AprJun
Synonyms: H. hystrix Roth; H. geniculatum All