Log In
New Account
Sitemap
Home
Search
Search Collections
Map Search
Chicago Botanic Garden
Project Information
Checklists
Create a Checklist
Dynamic Key
Denver Botanic Gardens
Project Information
Checklists
Create a Checklist
Dynamic Key
Desert Botanical Garden
Project Information
Checklists
Create a Checklist
Dynamic Key
NY Botanical Garden
Project Information
Checklists
Create a Checklist
Dynamic Key
Marie Selby Botanical Gardens
Project Information
Checklists
Create a Checklist
Dynamic Key
Streptanthus batrachopus
J.L. Morrison
Family:
Brassicaceae
Mt. Tamalpais Jewelflower
FNA
Resources
Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Annuals;
(glaucous), glabrous throughout
. Stems
unbranched or branched basally, 0.3-1.7 (-2.8) dm.
Basal leaves
(soon withered); not rosulate; shortly petiolate; blade (succulent, mottled), obovate to ob-lanceolate, 0.5-2 cm, margins coarsely dentate.
Cauline leaves:
blade lanceolate, 0.5-2.5 cm × 1-7 mm (smaller distally), base auriculate, margins entire or dentate (entire distally).
Racemes
ebracteate (lax, sometimes secund).
Fruiting pedicels
divaricate-ascending, 1-2.5(-4) mm.
Flowers:
calyx urceolate; sepals (erect) reddish purple, (ovate), 3-5 mm, keeled, (apex spreading); petals whitish (abaxial pair with purplish veins, adaxial pair purple), 5-8 mm, blade 2-3 × 1-1.5 mm, margins not crisped, claw 3-4 mm; stamens in 3 unequal pairs; filaments: abaxial pair (connate to middle), 3-4 mm, lateral pair 1.5-2.5 mm, adaxial pair (completely connate, not recurved), 5-6 mm; anthers: abaxial and lateral pairs fertile, 1.4-1.7 mm, adaxial pairs sterile, 0.3-0.5 mm; gynophore 0.3-0.7 mm.
Fruits
divaricate-ascending, slightly torulose, straight to slightly curved, slightly flattened, 1.3-3 cm × 1-1.5 mm; valves each with obscure midvein; replum straight; ovules 12-22 per ovary; style 0.2-0.8 mm; stigma entire.
Seeds
oblong, 1.3-2 × 0.8-1.2 mm; wing 0.1-0.3 mm wide distally, (narrower at margin, rarely absent).
2
n
= 28.
Flowering May-Jun. Serpentine barrens and outcrops in chaparral; of conservation concern; 100-600 m; Calif.
Streptanthus batrachopus
is known from Mt. Tamalpais, Marin County.
Open Interactive Map
Click to Display
10 Total Images
This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
Powered by
Symbiota