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|Family: Apiaceae (Umbelliferae)||View Description||Dichotomous Key|
|Genus: Yabea||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Yabea microcarpa (Hook. & Arn.) Koso-Pol.
Habit: Annual, slender, +- hairy, taprooted. Stem: erect, 3--40 cm. Leaf: petiole 2.5--3.5 cm; blade 2--6 cm, oblong to ovate, pinnately dissected, segments 2--8 mm, thread-like to linear. Inflorescence: umbels generally compound; peduncle 2--10 cm; bracts 2--5, leaf-like, pinnately lobed to compound, 1--5 cm; bractlets 1--5, 1--10 mm, entire or some generally 3-lobed at tip or pinnately lobed; rays 1--9, 1--8 cm, unequal, erect or ascending; pedicels 2--9, < 15 mm, erect. Flower: minute, +- bilateral; calyx lobes evident; petals obovate, white, tips narrowed; styles short. Fruit: oblong, compressed side-to-side; 1° ribs bristly, alternate with prickly wings; oil tubes 1 per interval between 1° ribs; fruit axis divided in distal 1/4. Seed: face deeply grooved. Chromosomes: 2n=12.
Ecology: Grassy slopes, dunes, chaparral, woodland; Elevation: < 1500 m. Bioregional Distribution: CA-FP, DMoj; Distribution Outside California: to Washington, Idaho, Arizona, Baja California. Flowering Time: Apr--Jun
Synonyms: Caucalis microcarpa Hook. & Arn.
eFlora Treatment Author: Lincoln Constance & Margriet Wetherwax
Jepson Online Interchange
Previous taxon: Yabea
Next taxon: Apocynaceae
Citation for this treatment: Lincoln Constance & Margriet Wetherwax 2016. Yabea microcarpa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=48745, accessed on December 05, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 05, 2016.