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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual to shrub, aromatic, of sunny areas, often sandy or chalky substrates; hairs nonglandular, in stellate clumps or not, peltate or not, and/or glandular. Leaf: simple, alternate or opposite [whorled], often ± reduced, entire or not, petioled or not, stipuled or not. Inflorescence: raceme- or panicle-like cymes or flowers 1. Flower: generally bisexual, ± radial; sepals 3 or 5 (outer 2 often narrower), free or fused at very base, often persistent in fruit, 3 twisted in direction opposite that of petals; petals [0(3)]4–5, generally ephemeral; stamens (3–10) many, free, often sensitive to touch, ± persistent in fruit or not; ovary superior, chambers 1 (or ± 3–12 from intruded parietal placentas), style 0–1, stigma 1(3), lobes 0 or 3–12. Fruit: loculicidal capsule, valves 3–12. Seed: [1–]3–many.
8 genera, ± 175 species: temperate, especially southeastern United States, Mediterranean; some cultivated (Cistus; Crocanthemum; Tuberaria). [Arrington 2004 Ph.D. Dissertation Duke Univ] Flowers open in sunshine for < 1 day. Taxa of Helianthemum in TJM2 treated here in Crocanthemum. —Scientific Editors: Thomas J. Rosatti, Bruce G. Baldwin.
Unabridged references: [Strother FNANM, in press]
Key to Cistaceae
Shrub, evergreen. Stem: < 2.5 m. Leaf: generally opposite, petioled or not; stipules 0. Inflorescence: panicle-like or flowers 1. Flower: sepals 3 or 5; petals 4–5, white (often drying ± yellow) or rose to purple, with red or yellow near base or not, often ± wrinkled; ovary 1-chambered, placentas 5, style 0 or 1, stigma large, hemispheric, 5–12-lobed. Fruit: valves 5–12.Key to Cistus
± 20 species: Mediterranean; cultivated as ornamental. (Ancient Greek name) [Guzman & Vargas 2005 Molec Phylogen Evol 37:644–660] Plants including hybrids sometimes escape cultivation; scented resin from some species may be myrrh of biblical, other references.
Stem: < 1.3 m; hairs generally glandular and nonglandular. 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.
2n=18. Uncommon. Disturbed places; < 1000 m. n&s Central Coast, n South Coast, San Gabriel Mountains, Western Transverse Ranges (Liebre Mtns), Peninsular Ranges; native to southern Europe. Possibly naturalizing in Klamath Ranges on I-5 median north of Shasta Lake. [Cistus creticus L.; Cistus incanus subsp. corsicus (Loisel.) Heywood; Cistus villosus L., including varieties.] Jan–Aug [Online Interchange]
Previous taxon: Cistus
Next taxon: Cistus ladanifer
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Sep 2 2015
Citation for this treatment: [Author of taxon treatment] 2013. Cistus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=19512, accessed on Sep 2 2015
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|Geographic subdivisions indicated for the distribution of Cistus incanus|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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