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Streptanthus fenestratus (Greene) J.T. Howell Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Leaflets of Western Botany 9(12): 184. 1961. (Leafl. W. Bot.) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 7/24/2009)
 

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16. Streptanthus fenestratus (Greene) J. T. Howell, Leafl. W. Bot. 9: 184. 1961; Pleiocardia fenestrata Greene, Leafl. Bot. Observ. Crit. 1: 86. 1904. TYPE: United States, California, Fresno Co., Tehipite Valley, 4000 ft., 6–10 July 1900, H. M. Hall & H. P. Chandler 492 (holotype, US!; isotypes, CAS!, MO!).

     Herbs, annual, glabrous throughout, glaucous. Stems (0.5–)1–2(–3.5) dm, erect, simple or branched below middle. Basal leaves rosulate, petiolate, 1.5–6 cm, with slender petioles, 1- or 2-pinnatisect; middle cauline leaves ovate to lanceolate, coarsely dentate or entire, rarely pinnatifid but not divided into filiform segments, auriculate; upper leaves amplexicaul, entire. Racemes bracteate below or between lowermost 1 or 2 flowers, without a terminal cluster of sterile flowers; fruiting pedicels divaricate-ascending, straight, 2–7 mm. Flowers: sepals forming tubular-urceolate calyx, purple, 5–7 mm, slightly keeled or not, recurved at apex; petals rose-purple, 9–15 mm; blade 3–6 x 2.5–3.5 mm, not crisped; claw 6–9 mm, narrower than blade; filaments in 3 pairs of unequal length, free; adaxial pair 5–7 mm, recurved; abaxial pair 3–4 mm; lateral pair 1.5–2.5 mm; anthers of all stamens fertile, 2–2.5 mm. Fruits 2–5 cm x 1.2–1.7 mm, ascending to divaricate or rarely reflexed, slightly flattened, not only slightly torulose; valves glabrous, with obscure midvein; gynophore 0.2–2.5 mm; replum straight; style 0.1–1 mm; stigma entire; ovules and seeds 22–38 per fruit. Seeds oblong, 1–1.5 x 0.7–0.9 mm; wing absent or distal and 0.05–0.1 mm wide. 2n = 28.

Flowering: May–Jun.

Habitat: granitic ledges and sand, gruss deposits in open pine forest.

Elevation: 1100–1800 m.

Distribution: United States (California/Fresno Co.).

 

 
 


 

 
 
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