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|Jepson eFlora: Taxon page
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|Family: Brassicaceae (Cruciferae)||View Description||Dichotomous Key|
|Genus: Streptanthus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Streptanthus vernalis R. O'Donnell & R.W. Dolan
Habit: Annual, glabrous. Stem: 0.2--2 dm, simple or branched distally. Leaf: basal not rosetted, early-deciduous, broadly obovate to +- round, coarsely dentate, fleshy, not mottled; mid-cauline sessile, 5--18 mm, ovate to oblong, entire, base lobed to clasping; distal similar, much-reduced. Inflorescence: open, occasionally 1-sided; bracts 0; terminal sterile flower cluster 0. Flower: calyx urn-shaped, sepals 5--7 mm, green, lance-ovate, keeled; petals 6.5--8 mm, +- 1.5 mm, wide, not crinkled, white, veins not darker; filaments in 3 pairs of unequal length; longest pair completely fused, 6--8 mm, generally recurved, lower pair fused proximally; fertile anthers 1.5--2 mm. Fruit: 3--5 cm, 1.5--2 mm wide, spreading-ascending, straight, constricted between seeds; valves glabrous, midvein obscure; stigma entire; pedicels spreading-ascending, 1--2 mm, straight. Seed: 16--20, 1.6--2 mm, oblong; wing 0.1--0.2 mm wide at tip.
Ecology: Serpentine talus, gravel; Elevation: +- 600--900 m. Bioregional Distribution: NCoRI (Three Peaks, Lake Co.). Flowering Time: Mar--May
eFlora Treatment Author: Ihsan A. Al-Shehbaz
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Streptanthus tortuosus
Next taxon: Streptanthus vimineus
Citation for this treatment: Ihsan A. Al-Shehbaz 2017. Streptanthus vernalis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=81541, accessed on April 28, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 28, 2017.