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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 farnsworthianus J.T. Howell
Habit: Annual, glabrous, generally +- green-purple. Stem: 2--10 dm, erect, simple or branched distally. Leaf: basal rosetted, early-deciduous, 2-pinnately lobed or divided; mid-cauline sessile, 3--16 cm, 1--4 cm wide, lanceolate, dentate distally or entire, base clasping; distal reduced, entire. Inflorescence: open; terminal sterile flower cluster 0; bracted proximally or only between most proximal 1--2 flowers. Flower: calyx urn-shaped, sepals 6--10 mm, +- keeled or not, violet-purple; petals 8--11 mm, 1.5--2 mm wide, recurved, crinkled, white, veins violet; filaments free, in 3 pairs of unequal length, longest pair 7--9 mm; fertile anthers 3.5--5 mm. Fruit: ascending, 6--12 cm, 1.7--2.5 mm wide, straight to +- curved, not constricted between seeds; valves glabrous, midvein distinct; stigma +- 2-lobed; pedicels spreading, 4--15 mm, straight. Seed: 60--100, 2--2.5 mm, ovate or +- round; wing 0.1--0.3 mm wide at seed tip. Chromosomes: 2n=28.
Ecology: Foothill woodland; Elevation: 400--1400 m. Bioregional Distribution: c SN (Madera, Fresno cos.), s SN. Flowering Time: May--Jun
eFlora Treatment Author: Ihsan A. Al-Shehbaz
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Streptanthus drepanoides
Next taxon: Streptanthus fenestratus
Citation for this treatment: Ihsan A. Al-Shehbaz 2016. Streptanthus farnsworthianus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=45735, accessed on September 25, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 25, 2016.