Jepson eFlora: Taxon page
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Crossosoma californicum
CATALINA CROSSOSOMA

Higher Taxonomy
Family: CrossosomataceaeView DescriptionDichotomous Key

Common Name: CROSSOSOMA FAMILY
Habit: Shrub, small tree. Stem: generally glabrous; branchlets or twigs generally thorny. Leaf: generally deciduous, simple, generally small, generally alternate, entire; stipules minute or 0. Inflorescence: flowers 1. Flower: generally bisexual, radial; hypanthium short; sepals, petals generally 5(3--6), free; petals generally white, ephemeral; stamens 4--50, on or around disk; pistils 1--9, simple, styles short, stigmas head-like, ovules generally 2--many. Fruit: follicles, 1--9. Seed: brown to black, arilled.
Genera In Family: 4 genera, 9 species: western United States, Mexico.
eFlora Treatment Author: Robert E. Preston & James R. Shevock
Scientific Editor: Thomas J. Rosatti.
Genus: CrossosomaView DescriptionDichotomous Key

Leaf: deciduous (or dry when dormant); petiole 0--short. Inflorescence: peduncle bracted or not. Flower: petals 9--15 mm, +- round or oblong, generally white. Fruit: cylindric, surface smooth or net-like, beak 1--2 mm. Seed: generally > 2 per fruit, black, shiny, round to flat; aril conspicuous, fringed, +- yellow.
Species In Genus: 2 species: southern California to Arizona, Mexico. Etymology: (Greek: fringe body, from aril)

Crossosoma californicum Nutt.
NATIVE
Habit: Plant 1--5 m. Stem: branchlets +- thorny. Leaf: oblong (to obovate or spoon-shaped). Flower: sepals round-ovate; petals 12--15 mm, +- round, white, +- clawed. Fruit: 2--9, 15--20 mm, +- recurved at tip. Seed: generally > 20, +- 2.5 mm diam.
Ecology: Dry, rocky slopes, canyons; Elevation: < 610 m. Bioregional Distribution: c SCo (Palos Verdes Peninsula), s ChI (San Clemente, Santa Catalina islands); Distribution Outside California: Baja California (Guadalupe Island). Flowering Time: Feb--May
eFlora Treatment Author: Robert E. Preston & James R. Shevock
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Crossosoma bigelovii
Next taxon: Glossopetalon

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botanical illustration including Crossosoma californicum

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Citation for this treatment: Robert E. Preston & James R. Shevock 2016. Crossosoma californicum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=21075, accessed on July 25, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 25, 2016.


Crossosoma californicum
click for enlargement
© 2011 Neal Kramer
Crossosoma californicum
click for enlargement
© 2011 Neal Kramer
Crossosoma californicum
click for enlargement
© 2011 Neal Kramer
Crossosoma californicum
click for enlargement
© 2011 Neal Kramer
Crossosoma californicum
click for enlargement
© 2011 Neal Kramer
Crossosoma californicum
click for enlargement
© 2011 Neal Kramer

More photos of Crossosoma californicum in CalPhotos


Geographic subdivisions for Crossosoma californicum:
c SCo (Palos Verdes Peninsula), s ChI (San Clemente, Santa Catalina islands);
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
READ ABOUT YELLOW FLAGS
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.