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Peritoma serrulata
ROCKY MOUNTAIN BEE PLANT

Higher Taxonomy
Family: CleomaceaeView DescriptionDichotomous Key

Common Name: SPIDERFLOWER FAMILY
Habit: Annual, perennial herb, shrub, often ill-smelling. Leaf: generally 1-palmate, generally alternate, generally petioled; stipules generally minute, often bristle-like or hairy; leaflets 0 or 3--7. Inflorescence: raceme, head, or flowers 1, expanded in fruit; bracts generally 3-parted below, simple above, or 0. Flower: generally bisexual, radial to +- bilateral; sepals generally 4, free or fused, generally persistent; petals generally 4, free, +- clawed; stamens generally 6, free, exserted, anthers generally coiling at dehiscence; ovary superior, generally on stalk-like receptacle, chamber generally 1, placentas generally 2, parietal, style 1, persistent, stigma generally minute, +- head-like. Fruit: 2 nutlets or generally capsule, septicidal; valves generally 2, deciduous, leaving septum (frame-like placentas) behind; pedicel generally +- reflexed to spreading.
Genera In Family: 17 genera, +- 150 species: widespread tropics to arid temperate. Note: Treated as Capparaceae in TJM (1993).
eFlora Treatment Author: Robert E. Preston & Staria S. Vanderpool
Scientific Editor: Thomas J. Rosatti.
Genus: PeritomaView DescriptionDichotomous Key

Common Name: BEE PLANT
Habit: Annual, shrub, glabrous to densely glandular-hairy. Stem: generally branched from upper nodes. Leaf: petiole 5--45 mm; leaflets 3--5. Inflorescence: raceme, terminal, generally 1--4 cm, generally 5--40 cm in fruit; pedicels 4--20 mm. Flower: often +- unisexual (stamens or pistils vestigial), +- bilateral, parts generally yellow; sepals free or fused, deciduous above base; petal claw 0 to short. Fruit: longer than wide; septum linear to oblong; receptacle stalk-like, reflexed to ascending. Seed: 10--40.
Species In Genus: 6 species. Etymology: (Greek: cutting all-around, from calyx)

Peritoma serrulata (Pursh) DC.
NATURALIZED
Habit: Annual, open, 3--8 dm, +- glabrous. Leaf: leaflets generally 3, 2--6 cm, elliptic. Flower: sepals fused in basal 1/2, generally 1.7--3 mm, ovate, acuminate, minutely dentate, purple to green, persistent; petals 7--12 mm, oblong to ovate, purple (white); stamens 18--24 mm, purple, anthers 2--2.3 mm, green; style 0.1--0.5 mm. Fruit: 30--55 mm, 3--6 mm wide, +- linear, +- round in ×-section, smooth; receptacle 10--15 mm. Chromosomes: 2n=34,60.
Ecology: Roadsides, disturbed areas; Elevation: 305--1700 m. Bioregional Distribution: n SNH, SnJV, CCo, SCo, SnGb, PR, GB (exc W&I); Distribution Outside California: southern British Columbia, Great Plains. Flowering Time: May--Jul Note: Evidently wide-ranging but in California rarely collected, perhaps only a waif.
Synonyms: Cleome serrulata Pursh
eFlora Treatment Author: Robert E. Preston & Staria S. Vanderpool
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Citation for this treatment: Robert E. Preston & Staria S. Vanderpool 2016. Peritoma serrulata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=91911, accessed on April 30, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on April 30, 2016.


Peritoma serrulata
click for enlargement
© 2015 Barry Breckling
Peritoma serrulata
click for enlargement
© 2015 Barry Breckling
Peritoma serrulata
click for enlargement
© 2015 Barry Breckling
Peritoma serrulata
click for enlargement
© 2015 Barry Breckling
Peritoma serrulata
click for enlargement
© 2015 Barry Breckling
Peritoma serrulata
click for enlargement
© 2015 Barry Breckling

More photos of Peritoma serrulata in CalPhotos


Geographic subdivisions for Peritoma serrulata:
n SNH, SnJV, CCo, SCo, SnGb, PR, GB (exc W&I);
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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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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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.