Saturday, February 13, 2016

Plagiobothrys arizonicus (Arizona Popcorn Flower)

3/24/01 Red Rock Canyon State Park, Kern County, CA


COMMON NAME: Arizona Popcornflower

SPECIES: Plagiobothrys arizonicus

FAMILY: Boraginaceae (Borage Family)


LOCATION: Red Rock Canyon State Park, Kern County, CA


Treatment from The Jepson Manual (1993):

Annual; sap purple

Stem ascending to erect, 1–4 dm; hairs rough, sharp, some spreading

Leaves: basal in rosette, 1.5–5 cm; carline alternate

Inflorescence braced throughout

Flower: calyx ± 3 mm, generally circumscissile in fruit; corolla 2–2.5 mm wide

Fruit: nutlets generally 2, ± 2 mm, ovoid, strongly arched in profile, strongly attached; midrib, lateral ribs, cross-ribs narrow; interspaces wide; scar lateral near middle, round

Ecology: Common. Dry, coarse soils in scrub or woodlands

Elevation: < 2100 m.  

Bioregional distribution: Tehachapi Mountain Area, e San Francisco Bay Area, Inner South Coast Ranges, Transverse Ranges, White and Inyo Mountains, Desert 

Distribution outside California: to New Mexico, n Mexico

Flowering time: Mar–May

Intergrades with  P. canescens ,  P. nothofulvus 

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