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Oxystylis lutea

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: OxystylisView Description 


Species In Genus: 1 sp. Etymology: (Greek: sharp style)

Oxystylis lutea Torr. & Frém.
NATIVE
Habit: Annual, +- glabrous. Stem: branched from base, 5--15 dm. Leaf: petiole 2.5--7 cm; leaflets 3, 2--6 cm, +- elliptic, thick, firm. Inflorescence: axillary head, 0.5--3 cm, +- spheric, +- sessile, not elongating in fruit; pedicels 1--3 mm, thicker, reflexed in fruit. Flower: radial; sepals free, 1--2 mm, lanceolate, green; petals 2--3 mm, elliptic, straw-yellow, +- sessile; stamens 3--5 mm, yellow, anthers 1--1.2 mm; ovary 1--1.5 mm, +- sessile, lobes 2, +- separate, each 1-ovuled, style 2--3 mm, wide, fleshy at base. Fruit: 2 nutlets, each 2.5 mm, +- spheric, smooth, white to deep purple; receptacle < 2 mm, +- stalk-like; style 4--11 mm, stout, spine-like. Seed: 1 per nutlet. Chromosomes: 2n=20,40.
Ecology: Desert wash, alkaline sink scrub, alkaline flats, in sandy or alkaline soil; Elevation: < 945 m. Bioregional Distribution: n&e DMoj; Distribution Outside California: western Nevada (Amargosa Desert). Flowering Time: Mar--Oct
eFlora Treatment Author: Robert E. Preston & Staria S. Vanderpool
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Citation for this treatment: Robert E. Preston & Staria S. Vanderpool 2016. Oxystylis lutea, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=35724, accessed on February 12, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 12, 2016.


Oxystylis lutea
click for enlargement
© 2005 Aaron Schusteff
Oxystylis lutea
click for enlargement
© 2010 James M. Andre
Oxystylis lutea
click for enlargement
© 2005 Aaron Schusteff
Oxystylis lutea
click for enlargement
© 2010 California Academy of Sciences
Oxystylis lutea
click for enlargement
© 2005 Aaron Schusteff
Oxystylis lutea
click for enlargement
© 2010 James M. Andre

More photos of Oxystylis lutea in CalPhotos


Geographic subdivisions for Oxystylis lutea:
n&e DMoj;
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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CCH collections by month

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