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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
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|Family: Boraginaceae||View Description||Dichotomous Key|
|Genus: Plagiobothrys||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Plagiobothrys tenellus (Nutt. ex Hook.) A. Gray.
Habit: Annual, rarely entire plant red, hairs +- spreading; roots occasionally +- red. Stem: 1--many, erect, 0.5--3 dm. Leaf: basal in rosette, 1--5 cm; cauline few, alternate. Inflorescence: +- strongly coiled toward tip, elongating in fruit, bracts near base; flowers generally > 10 per branch. Flower: calyx 3--4(5) mm; corolla limb 1.5--3 mm diam, appendages +- pale yellow. Fruit: nutlet 1--2 mm, cross-shaped, strongly arched, shiny; abaxial ridge, lateral ridges smooth to tubercled, cross-ribs wide, generally papillate, interspaces narrow, groove-like, often obscure; scar near middle, +- round.
Ecology: Common. Dry, open slopes in grassland, scrub, woodland, forest; Elevation: < 1700 m. Bioregional Distribution: CA-FP, MP, w D; Distribution Outside California: to British Columbia, Idaho, Utah, Arizona, Mexico. Flowering Time: Mar--Jun
Unabridged Note: Variable. See note under Plagobothrys shastensis. If recognized taxonomically, +- red plants similar to Plagiobothrys tenellus from Siskiyou Co. assignable to Plagiobothrys colorans Greene based on fruit.
eFlora Treatment Author: Ronald B. Kelley, Robert Patterson, Richard R. Halse & Timothy C. Messick, family description, key to genera; treatment of genera by Ronald B. Kelley
Jepson Online Interchange
Previous taxon: Plagiobothrys strictus
Next taxon: Plagiobothrys tener
Citation for this treatment: Ronald B. Kelley, Robert Patterson, Richard R. Halse & Timothy C. Messick, family description, key to genera; treatment of genera by Ronald B. Kelley 2017. Plagiobothrys tenellus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=38533, accessed on January 20, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 20, 2017.