Streptanthus glandulosus subsp. sonomensis
Novon 18: 280. 2008.
Stems 2.3–7 (–9) dm, moderately to densely hirsute proximally, glabrous distally. Cauline leaves: blade conduplicate distally, margins entire or denticulate, surfaces hirsute. Racemes secund; rachis straight. Fruiting pedicels 3–10 mm, sparsely pubescent or glabrous. Flowers: sepals cream or pale-yellow, 5–6 mm, glabrous or sparsely pubescent; petals white (without purple veins), 10–17 mm; adaxial filaments 7–10 mm. Fruits spreading to slightly reflexed, arcuate; valves glabrous or sparsely pubescent. 2n = 28.
Phenology: Flowering May–Jul.
Habitat: Serpentine or Franciscan formation outcrops
Discussion
Of conservation concern.
Subspecies sonomensis is known from Sonoma County.
Selected References
None.
Lower Taxa
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