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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 December 05, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 05, 2016.


Peritoma serrulata
click for enlargement
© 2015 Barry Breckling
Peritoma serrulata
click for enlargement
© 2016 Keir Morse
Peritoma serrulata
click for enlargement
© 2015 Barry Breckling
Peritoma serrulata
click for enlargement
© 2016 Keir Morse
Peritoma serrulata
click for enlargement
© 2016 Keir Morse
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. 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.
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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.