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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 insignis Jeps.
Habit: Annual, bristly throughout. Stem: 1.2--6 dm, simple or branched distally. Leaf: basal not rosetted, lanceolate to oblanceolate, coarsely dentate to pinnately lobed; mid-cauline sessile, 1.3--9 cm, lanceolate, dentate, basally lobed; distal reduced, dentate. Inflorescence: open; terminal cluster of dark purple, pale yellow, or +- green-yellow sterile flowers present. Flower: calyx bell-shaped, sepals of fertile flowers 4--6 mm, oblong to lanceolate, not or +- keeled, dark purple, +- purple, or +- green-yellow, hairy; petals 7--12 mm, 1--2 mm wide, +- purple-white, lemon-yellow, or +- yellow-white, midvein darker; filaments in 3 pairs of unequal length; longest pair completely fused, 6--9 mm, lower pair free; fertile anthers 1.3--2 mm. Fruit: ascending or reflexed, 3.5--11.4 cm, 1.5--2 mm wide, straight or +- curved, not constricted between seeds; valves sparsely to densely bristly, midvein prominent; stigma entire; pedicels spreading to ascending, 3--8 mm. Seed: 32--94, 1.4--2 mm, broadly oblong; wing 0.1--0.3 mm wide, continuous. Chromosomes: 2n=28.
eFlora Treatment Author: Ihsan A. Al-Shehbaz
Jepson Online Interchange
Previous taxon: Streptanthus howellii
Next taxon: Streptanthus insignis subsp. insignis
Citation for this treatment: Ihsan A. Al-Shehbaz 2016. Streptanthus insignis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=45744, accessed on May 24, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 24, 2016.