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|Family: Apiaceae (Umbelliferae)||View Description||Dichotomous Key|
|Genus: Eryngium||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Eryngium aristulatum Jeps.
Habit: Generally glabrous, occasionally puberulent only on leaves or bracts. Stem: decumbent to erect, 1--9 dm, slender to stout, main stem branching 2--5 cm distal to rosette. Leaf: basal < branches; petiole 5--27 cm; blade 3--10 cm, < petiole, lanceolate to oblanceolate, coarsely sharp-serrate, irregularly cut, or lobed. Inflorescence: heads 5--12 mm, +- spheric, in cymes, glabrous, puberulent or rough; peduncle 0.5--1.5 cm; bracts 6--27 mm, linear to lance-linear, margins with 0--few spines proximal to middle, 0--few spines adaxially. Flower: sepals 1.7--2.8 mm, lanceolate to ovate, entire, tip-spine < 1 mm; petals oblanceolate, white; styles 1.5--3.5 mm, occasionally +- purple. Fruit: 1.5--2.5 mm, narrowly elliptic; scales dense, unequal, lanceolate to ovate, acuminate, minutely bristled.
Note: Highly variable.
Unabridged Note: Eryngium aristulatum originally applied to slender, sprawling plants with heads <= 6 mm, fruit scales densely bristly; stout, erect plants with heads > 6 mm, fruits sparsely bristly may deserve recognition as Eryngium oblanceolatum J.M. Coult. & Rose; other varieties may warrant sp. rank.
eFlora Treatment Author: Robert E. Preston, Michael S. Park & Lincoln Constance
Jepson Online Interchange
Previous taxon: Eryngium alismifolium
Next taxon: Eryngium aristulatum var. aristulatum
Citation for this treatment: Robert E. Preston, Michael S. Park & Lincoln Constance 2016. Eryngium aristulatum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=25070, accessed on June 01, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on June 01, 2016.