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Cistus ladanifer
GUM CISTUS


Higher Taxonomy
Family: CistaceaeView DescriptionDichotomous Key
Common Name: ROCK-ROSE FAMILY
Habit: 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.
Genera In Family: 8 genera, +- 175 species: temperate, especially southeastern United States, Mediterranean; some cultivated (Cistus; Crocanthemum; Tuberaria). Note: Flowers open in sunshine for < 1 day. Taxa of Helianthemum in TJM2 treated here in Crocanthemum.
eFlora Treatment Author: John W. Thieret & Elizabeth McClintock, final revision by Thomas J. Rosatti & Bruce G. Baldwin, except as noted
Scientific Editor: Thomas J. Rosatti, Bruce G. Baldwin.
Genus: CistusView DescriptionDichotomous Key


Common Name: ROCK-ROSE
Habit: 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.
Species In Genus: +- 20 species: Mediterranean; cultivated as ornamental. Etymology: (Ancient Greek name) Note: Plants including hybrids sometimes escape cultivation; scented resin from some species may be myrrh of biblical, other references.
eFlora Treatment Author: John W. Thieret & Elizabeth McClintock, final revision by Thomas J. Rosatti & Bruce G. Baldwin
Reference: Guzman & Vargas 2005 Molec Phylogen Evol 37:644--660
Cistus ladanifer L.
NATURALIZED
Stem: < 2.5 m, shiny, sticky; hairs +- 0. Leaf: sessile [or not], 3--8 cm, lance-linear to narrow-oblong, main veins from base generally 3. Inflorescence: flowers 1 at ends of lateral branchlets. Flower: sepals 3; petals 3--5 cm, white, generally with red or yellow near base; style +- 0. Fruit: valves 6--12. Chromosomes: 2n=18.
Ecology: Uncommon. Disturbed places; Elevation: < 800 m. Bioregional Distribution: s CCo, s SCo, WTR, SnGb; Distribution Outside California: native to southwestern Europe. Flowering Time: Mar--Aug
Jepson eFlora Author: John W. Thieret & Elizabeth McClintock, final revision by Thomas J. Rosatti & Bruce G. Baldwin
Reference: Guzman & Vargas 2005 Molec Phylogen Evol 37:644--660
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Botanical illustration including Cistus ladanifer

botanical illustration including Cistus ladanifer

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Citation for this treatment: John W. Thieret & Elizabeth McClintock, final revision by Thomas J. Rosatti & Bruce G. Baldwin 2012, Cistus ladanifer, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=19514, accessed on December 06, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on December 06, 2019.

Cistus ladanifer
click for enlargement
© 2004 Michael Charters
Cistus ladanifer
click for enlargement
© 2004 Michael Charters
Cistus ladanifer
click for enlargement
© 2004 Michael Charters
Cistus ladanifer
click for enlargement
© 2004 Michael Charters
Cistus ladanifer
click for enlargement
© 2011 Neal Kramer

More photos of Cistus ladanifer in CalPhotos



Geographic subdivisions for Cistus ladanifer:
s CCo, s SCo, WTR, SnGb
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map of distribution 1
(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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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.