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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 gracilis Eastw.
Habit: Annual, slender, glabrous throughout. Stem: (0.6)1--3.5 dm, erect, generally branched at base. Leaf: basal rosetted, oblanceolate to spoon-shaped, wavy to dentate (lobed); mid-cauline short-petioled or sessile, 0.5--3 cm, oblong to ovate, entire or dentate, base lobed; distal reduced, clasping, entire. Inflorescence: terminal sterile flower cluster 0; bracted proximally or between lowest 2 flowers. Flower: calyx urn-shaped, sepals 4--5 mm, not keeled, rose-purple; petals 7--10 mm, 1.5--2.5 mm wide, not crinkled, +- pink; filaments free, in 3 pairs of unequal length, longest pair 5--6 mm; anthers fertile, 1.5--2 mm. Fruit: ascending, 3--7 cm, 1--1.5 mm wide, constricted between seeds; valves glabrous, midvein obscure; stigma entire; pedicels spreading to ascending, 3--6 mm, straight or recurved, not expanded at receptacle. Seed: 24--52, 1--1.5 mm, oblong; wing 0--0.25 mm wide.
Ecology: Rocky slopes; Elevation: 2600--3600 m. Bioregional Distribution: se SNH (Kings-Kern Divide region). Flowering Time: Jun--Sep
eFlora Treatment Author: Ihsan A. Al-Shehbaz
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Streptanthus glandulosus subsp. sonomensis
Next taxon: Streptanthus hesperidis
Citation for this treatment: Ihsan A. Al-Shehbaz 2017. Streptanthus gracilis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=45739, accessed on January 16, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 16, 2017.