Erigeron petrophilus

Erigeron petrophilus
	Erigeron petrophilus var. viscidulus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Erigeron
Species:	E. petrophilus
Binomial name
	Erigeron petrophilus; Greene
Synonyms
	Erigeron decumbens Eastw. 1906 not Nutt. 1840, syn of var. viscidulus; Erigeron inornatus var. viscidulus A.Gray, syn of var. viscidulus; Erigeron viscidulus (A.Gray) Greene, syn of var. viscidulus;

Erigeron petrophilus is a species of flowering plant in the daisy family known by the common names rockloving erigeron or cliff fleabane.^[2] It is native to the mountain ranges of California from Siskiyou County south as far as San Luis Obispo County and El Dorado County.^[2] It also grows in southwestern Oregon.^[3]

Erigeron petrophilus grows in forest and woodland, often, as its name suggests, in rocky habitat. It is sometimes grows on serpentine soils. This is a perennial herb growing many hairy, glandular, spreading stems from a tough, woody caudex. The narrow, oblong leaves are equal in size and spaced evenly along each stem. The inflorescence is a cluster of several flower heads, each just over a centimeter (0.5 inches) wide and lined with layers of fuzzy, glandular phyllaries. The heads contains many yellow disc florets but no ray florets. The fruit is a small achene with a pappus of bristles.^[4]^[5]

Varieties^[4]^[2]

Erigeron petrophilus var. petrophilus - Coast Ranges from Siskiyou County to Monterey County
Erigeron petrophilus var. sierrensis, the Sierra erigeron or northern Sierra daisy - northern Sierra Nevada of California from El Dorado County to Plumas County
Erigeron petrophilus var. viscidulus (A. Gray) G. L. Nesom, the Klamath rock daisy - Klamath Mountains of northwestern California + southwestern Oregon, plus Coast Ranges as far south as Sonoma County and Sierra Nevada foothills in Butte County

References[]

External links[]

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[1] The Plant List, Erigeron petrophilus Greene

[sara-2] Jump up to: ^a ^b ^c Calflora taxon report, University of California, Erigeron petrophilus E. Greene, cliff fleabane, rockloving erigeron

[3] Biota of North America Program 2014 county distribution map^{[permanent dead link]} png

[sarah-4] Jump up to: ^a ^b Flora of North America, Erigeron petrophilus Greene

[5] Greene, Edward Lee 1888. Pittonia 1(15): 218–219

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