|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
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|Family: Apiaceae (Umbelliferae)||View Description||Dichotomous Key|
|Genus: Lomatium||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Lomatium tracyi Mathias & Constance
Habit: Plant 1--3.5 dm, glabrous to minutely scabrous; taproot slender. Stem: +- 0. Leaf: petiole 2.5--8 cm, scarious, generally sheathing throughout; blade 4.5--10 cm, oblong to ovate, ternate-pinnately or 2-pinnately dissected, segments 1--7 mm, thread-like to oblong, acute or obtuse, generally overlapping. Inflorescence: peduncle 1--2 dm, spreading; bractlets 2--6, 1--4 mm, linear to oblanceolate, scarious; rays 6--12, 1--6 fertile, 0.5--8 cm, ascending, unequal; pedicels 1--5 mm. Flower: corolla yellow. Fruit: 6--10 mm, +- oblong-ovate, glabrous; wings << body in width; oil tubes obscure. Chromosomes: 2n=22.
Ecology: Open pine forest, on serpentine; Elevation: 500--1500 m. Bioregional Distribution: KR, n NCoR, CaRH. Flowering Time: May--Jun
eFlora Treatment Author: Lincoln Constance & Margriet Wetherwax
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Lomatium torreyi
Next taxon: Lomatium triternatum
Citation for this treatment: Lincoln Constance & Margriet Wetherwax 2016. Lomatium tracyi, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=31468, accessed on July 23, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 23, 2016.