| 词条 | Erigeron petrophilus |
| 释义 |
|regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |tribus = Astereae |genus = Erigeron |species = E. petrophilus |binomial = Erigeron petrophilus |binomial_authority = Greene |synonyms_ref=[1] |synonyms=*Erigeron decumbens Eastw. 1906 not Nutt. 1840, 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]
References1. ^The Plant List, Erigeron petrophilus Greene 2. ^1 2 Calflora taxon report, University of California, Erigeron petrophilus E. Greene, cliff fleabane, rockloving erigeron 3. ^Biota of North America Program 2014 county distribution map png 4. ^1 Flora of North America, Erigeron petrophilus Greene 5. ^[https://www.biodiversitylibrary.org/page/15253681#page/218/mode/1up Greene, Edward Lee 1888. Pittonia 1(15): 218–219] External links
4 : Erigeron|Flora of California|Flora of Oregon|Plants described in 1888 |
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