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Vascular Plants of California
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Neoholmgrenia andina


Higher Taxonomy
Family: OnagraceaeView DescriptionDichotomous Key
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 Patterson, Bruce G. Baldwin.
Genus: NeoholmgreniaView Description 


Habit: Annual from taproot; branches many, slender, ascending from base. Stem: nearly naked proximally, densely leafy distally. Leaf: cauline, alternate, mostly closely spaced at stem tips, entire. Inflorescence: flowers 1 in axils. Flower: opening at dawn; sepals (3)4, reflexed separately or in pairs; petals (3)4, yellow, fading yellow; stamens (4)8, longer ones opposite sepals, anthers attached at middle, pollen grains 3-angled except in polyploid taxa (visible with hand lens); stigma hemispheric, > anthers and cross-pollinated or +- = anthers and self-pollinated. Fruit: sessile, 0.5--1 cm, +- straight, strongly flattened, walls +- swollen by seeds. Seed: in 1 row per chamber, narrowly obovoid, smooth, shiny, dots or blotches 0.
Species In Genus: 2 species: northeastern California, Nevada, central Utah, British Columbia, Alberta. Etymology: (Arthur H. Holmgren (1912--1992), Noel H. Holmgren (b. 1937), and Patricia K. Holmgren (b. 1940)) Note: Incl in Camissonia in TJM (1993).
eFlora Treatment Author: Warren L. Wagner
Reference: Wagner & Hoch 2009 Novon 19:130--132
Unabridged Reference: Raven 1969 Contr US Natl Herb 37:161--396; Wagner et al. 2007 Syst Bot Monogr 83:1--240
Neoholmgrenia andina (Nutt.) W.L. Wagner & Hoch
NATIVE
Habit: Plant minutely strigose, inflorescence generally more densely so. Stem: 1--15 cm. Leaf: many, 10--30 mm, narrowly oblanceolate. Inflorescence: erect. Flower: hypanthium 0.8--2 mm; sepals 0.8--2 mm; petals 0.8--2.3 mm; stamens opposite petals, sometimes reduced or 0. Fruit: ascending, 5--10 mm, 1--1.3 mm wide. Seed: 0.7--1.3 mm. Chromosomes: 2n=28,42.
Ecology: Seasonally moist flats, generally clay soil, sagebrush scrub to pinyon/juniper woodland; Elevation: 1200--2000 m. Bioregional Distribution: CaRH, MP; Distribution Outside California: to British Columbia, Alberta, Montana, Utah. Flowering Time: May--Jul Note: Self-pollinated, rarely cleistogamous.
Synonyms: Camissonia andina (Nutt.) P.H. Raven; Holmgrenia andina (Nutt.) W.L. Wagner & Hoch; Oenothera andina Nutt.
Jepson eFlora Author: Warren L. Wagner
Reference: Wagner & Hoch 2009 Novon 19:130--132
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botanical illustration including Neoholmgrenia andina

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Citation for this treatment: Warren L. Wagner 2012, Neoholmgrenia andina, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=91931, accessed on October 21, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 21, 2019.

No expert verified images found for Neoholmgrenia andina.



Geographic subdivisions for Neoholmgrenia andina:
CaRH, MP
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Duplicates counted once; synonyms included.
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