|University of California, Berkeley|
|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 infectivus I.M. Johnst.
Habit: Annual, +- red, staining. Stem: erect, 1--5 dm, +- canescent, +- spreading-hairy. Leaf: basal few, 2--8 cm, linear, in +- short-lived rosette; cauline alternate, many, oblong; abaxial leaf midveins, margins red. Inflorescence: bracts throughout, occasionally sparse; pedicels 1--2 mm. Flower: calyx 5--7 mm, lobes sparse-hairy, midveins dark red; corolla limb 3--4 mm diam, occasionally stained pink, appendages yellow. Fruit: nutlets 2--4, 2--3 mm, triangular-ovate, +- narrowed below tip, +- arched, pale gray-green, irregularly coarse-granular; abaxial ridge narrowly +- white-winged, cross-ribs 0--few, irregular; scar near middle, narrow-elliptic, deep-concave, crown 0.
Ecology: Open grassland, friable clay to sandy soils; Elevation: 80--830 m. Bioregional Distribution: NCoRI, w SnJV, e SnFrB, SCoR. Flowering Time: Mar--May
Unabridged Note: Seldom collected, especially in fruit. Variation in nutlet surface features indicates possible hybridization; study needed.
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 hystriculus
Next taxon: Plagiobothrys jonesii
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 2016. Plagiobothrys infectivus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=38506, accessed on October 21, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on October 21, 2016.