Flora of North America species comparison

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Erigeron breweri var. covillei

Erigeron breweri var. porphyreticus
Photo is of parent taxon

Coville erigeron, Coville's erigeron
Photo is of parent taxon

Brewer's fleabane, fleabane
Habit Plants (30–)40–75 cm; woody roots or caudices with relatively long and slender branches. Plants 20–30 cm; woody roots and relatively slender caudex branches.
Stems

ascending-erect, not wiry or brittle.

ascending-erect, often wiry and brittle.
Phyllaries

hispido-hirsute (hairs white, ascending, relatively thick-based, dense on outermost phyllaries, much less so on mid and inner), eglandular.

hispido-hirsute (hairs translucent, spreading, stiff, relatively thick-based), sometimes slightly glandular.

Erigeron breweri var. covillei

Erigeron breweri var. porphyreticus
Phenology Flowering May–Sep. Flowering May–Aug(–Sep).
Habitat Open, rocky sites in sagebrush, chaparral, juniper Open, rocky sites, commonly crevices and ledges, sagebrush, pinyon-juniper, ponderosa pine
Elevation 1000–1900 m (3300–6200 ft) (1200–)1300–2700(–3100) m ((3900–)4300–8900(–10200) ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Variety porphyreticus is similar to var. breweri in the production of relatively slender, rhizomelike proximal caudex branches, spreading-deflexed stem vestiture, and blue ray corollas; var. porphyreticus differs in its wirier stems, generally greater development of flowering branches, larger heads, and hirsuto-hispid phyllaries with broad, stramineous-indurate margins and lack of green apical patches.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 317. FNA vol. 20, p. 317.
Parent taxa Asteraceae > tribe Astereae > Erigeron > Erigeron breweri Asteraceae > tribe Astereae > Erigeron > Erigeron breweri
Sibling taxa
E. breweri var. bisanctus, E. breweri var. breweri, E. breweri var. jacinteus, E. breweri var. porphyreticus
E. breweri var. bisanctus, E. breweri var. breweri, E. breweri var. covillei, E. breweri var. jacinteus
Synonyms E. covillei, E. foliosus var. covillei E. porphyreticus
Name authority (Greene) G. L. Nesom: Phytologia 72: 172. (1992) (M. E. Jones) Cronquist: Brittonia 6: 283. (1947)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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