Friday, April 8, 2016

Cistus incanus (Pink Rockrose) - Non-Native

 5/6/01 Chantry Flat to Sturtevant Trail, San Gabriel Mountains, Los Angeles County, CA


COMMON NAME: Crimson Spot Rockrose

SPECIES: Cistus ladanifer

FAMILY: Cistaceae (Rockrose Family)


LOCATION: Road from Chantry Flat at lower parking lot to Sturtevant Trail, San Gabriel Mountains, Los Angeles County, CA


From Jepson e-Flora Taxon Page:


Stem: < 1.3 m; hairs generally glandular and non glandular. 

Leaf: petiole 0--15 mm; blade elliptic, tapered to base, +- wrinkled adaxially, main veins from base generally 1, margin +- wavy. 

Inflorescence: (1)10-flowered; pedicel generally < 2 cm. 

Flower: sepals 5, lance-ovate, acuminate; petals 2--3 cm, rose to purple; style thread-like, +- = stamens. 

Fruit: valves 5. 

Ecology: Uncommon. Disturbed places; 

Elevation: < 1000 m. 

Bioregional Distribution: n&s CCo, n SCo, SnGb, WTR (Liebre Mtns), PR; 

Distribution Outside California: native to southern Europe. 

Flowering Time: Jan--Aug 

Note:Possibly naturalizing in Klamath Ranges on I-5 median north of Shasta Lake. 

Synonyms: Cistus creticus L.; Cistus incanus subsp. corsicus (Loisel.) Heywood; Cistus incanus subsp. creticus (L.) Heywood; Cistus incanus subsp. incanus; Cistus villosus L.; Cistus villosus var. corsicus (Loisel.) Grosser, ined.?; Cistus villosus var. tauricus Grosser, ined.?; Cistus villosus var. undulatus Grosse, ined.?

eFlora Treatment Author: John W. Thieret & Elizabeth McClintock, final revision by Thomas J. Rosatti & Bruce G. Baldwin

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