Chylismiella pterosperma

Higher Taxonomy

Family: Onagraceae

Common Name: EVENING-PRIMROSE FAMILY
Habit: Annual to perennial herb (to tree). Leaf: cauline or basal, alternate, opposite, or whorled, generally simple and toothed (to pinnately compound); stipules 0 or generally deciduous. Inflorescence: spike, raceme, panicle, or flowers 1 in axils; bracted. Flower: generally bisexual, generally radial, often opening at either dawn or dusk; hypanthium generally prolonged beyond ovary (measured from ovary tip to sepal base); sepals 4(2--7); petals 4(2--7, rarely 0), often fading darker; stamens 2 × or = sepals in number, anthers 2-chambered, opening lengthwise, pollen interconnected by threads; ovary inferior, chambers generally as many as sepals (sometimes becoming 1), placentas axile or parietal, ovules 1--many per chamber, style 1, stigma 4-lobed (or lobes as many as sepals), club-shaped, spheric, or hemispheric. Fruit: capsule, loculicidal (sometimes berry or indehiscent and nut-like). Seed: sometimes winged or hair-tufted.
Genera In Family: 22 genera, +- 657 species: worldwide, especially western North America; many cultivated (Clarkia, Epilobium, Fuchsia, Oenothera). Note: Gaura moved to Oenothera. Fuchsia magellanica Lam. naturalized in northern California.
eFlora Treatment Author: Warren L. Wagner & Peter C. Hoch, family description, key to genera, treatment of genera by Warren L. Wagner, except as noted
Scientific Editor: Robert W. Patterson, Bruce G. Baldwin.

Genus: Chylismiella

View Description

Etymology: (Latin: diminutive of Chylismia) Note: Incl in Camissonia in TJM (1993).
Reference: [Wagner et al. 2007 Syst Bot Monogr 83:1--240]
Unabridged Reference: Raven 1969 Contr US Natl Herb 37:161--396

Chylismiella pterosperma (S. Watson) W.L. Wagner & Hoch

NATIVE
Habit: Annual, from taproot; hairs bristly, in inflorescence also glandular. Stem: erect, branched, 2--14 cm, slender, peeling near base. Leaf: cauline, alternate, +- sessile; blade 3--30 mm, narrowly lanceolate to oblanceolate, entire. Inflorescence: raceme, nodding in bud. Flower: opening at dawn; hypanthium 1--2 mm; sepals 4, 1.5--2.5 mm, reflexed singly or occasionally in pairs; petals 4, 1.5--2.5 mm, notched at tip, white, with yellow area at base, fading purple; longer stamens opposite sepals, anthers attached at base, pollen grains 3-angled; stigma hemispheric, +- = anthers, self-pollinated. Fruit: (3)4-chambered, ascending or spreading, 12--28 mm, 0.6--0.8 mm wide, straight or slightly curved, cylindric, slightly swollen by seeds; pedicel 4--8 mm. Seed: in 2 rows per chamber, 1--1.5 mm, with concave and convex sides, concave side with a thick wing, both sides densely covered with glassy club-shaped hairs. Chromosomes: 2n=14.
Ecology: Uncommon. Well-drained, generally volcanic slopes, pinyon/juniper woodland, sagebrush scrub; Elevation: 1400--2400 m. Bioregional Distribution: W&I, DMtns (Panamint Range); Distribution Outside California: to Oregon, western Utah, northwestern Arizona. Flowering Time: May--Jun Note: Self-pollinated.
Synonyms: Camissonia pterosperma (S. Watson) P.H. Raven; Oenothera pterosperma S. Watson
Jepson eFlora Author: Warren L. Wagner & Peter C. Hoch, family description, key to genera, treatment of genera by Warren L. Wagner
Reference: [Wagner et al. 2007 Syst Bot Monogr 83:1--240]
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Chylismiella
Next taxon: Circaea

Botanical illustration including Chylismiella pterosperma

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Citation for this treatment: Warren L. Wagner & Peter C. Hoch, family description, key to genera, treatment of genera by Warren L. Wagner 2012, Chylismiella pterosperma, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=89219, accessed on April 23, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 23, 2024.

Chylismiella pterosperma

Chylismiella pterosperma

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Geographic subdivisions for Chylismiella pterosperma: W&I, DMtns (Panamint Range)	MAP CONTROLS 1. You can change the display of the base map layer control box in the upper right-hand corner. 2. County and Jepson Region polygons can be turned off and on using the check boxes.

(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).	Data provided by the participants of the Consortium of California Herbaria. MAP LEGEND View all CCH records All markers link to CCH specimen records. The original determination is shown in the popup window. Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. READ ABOUT YELLOW FLAGS 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 (fruiting time in some monocot genera).