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Vascular Plants of California
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Aphanes occidentalis


Higher Taxonomy
Family: RosaceaeView DescriptionDichotomous Key
Common Name: ROSE FAMILY
Habit: Annual to tree, glandular or not. Leaf: simple to palmately or pinnately compound, generally alternate; stipules free to fused (0), persistent to deciduous. Inflorescence: cyme, raceme, panicle, cluster, or flowers 1; bractlets on pedicel ("pedicel bractlets") generally 0--3(many), subtended by bract or generally not. Flower: generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, subtending bractlets ("hypanthium bractlets") 0--5, alternate sepals; sepals generally 5; petals generally 5, free; stamens (0,1)5--many, anther pollen sacs generally 2; pistils (0)1--many, simple or compound, ovary superior to inferior, styles 1--5. Fruit: 1--many per flower, achene (fleshy-coated or not), follicle, drupe, or pome with generally papery core, occasionally drupe-like with 1--5 stones. Seed: generally 1--5 (per fruit, not per flower).
Genera In Family: 110 genera, +- 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. Note: Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis.
eFlora Treatment Author: Daniel Potter & Barbara Ertter, family description, key to genera, treatment of genera by Daniel Potter, except as noted
Scientific Editor: Daniel Potter, Thomas J. Rosatti.
Genus: AphanesView Description 


Habit: Annual, inconspicuous, soft-hairy, nonglandular. Stem: spreading to erect. Leaf: palmately lobed. Inflorescence: few-flowered cluster, axillary, +- hidden by sheathing stipules; pedicel bractlets 0. Flower: hypanthium +- urn-shaped, bractlets 0 or 4; sepals 4; petals 0; stamen generally 1, pollen sac 1, horseshoe-shaped; pistil generally 1, ovary superior, style attached near base. Fruit: hypanthium encasing achene, not hardened.
Species In Genus: 10--20 species: worldwide, especially Mediterranean. Etymology: (Greek: unseen, from hidden flowers)
eFlora Treatment Author: Barbara Ertter
Unabridged Reference: Rothmaler 1937 Fedde Rep Sp Nov Regni Veg 42:164--173
Aphanes occidentalis (Nutt.) Rydb.
NATIVE
Stem: generally 2--10 cm. Leaf: generally 3--12 mm; stipules widely ovate, deeply lobed; petiole generally 1--5 mm; blade generally 2--5 mm, +- round, main lobes 3, > 2/3 to base, again toothed or lobed. Flower: 0.5--2 mm; hypanthium bractlets 0 or < 0.5 mm; sepals 0.2--0.6 mm. Fruit: achene +- 1 mm, ovoid.
Ecology: Seasonally moist grassland, chaparral, woodland; Elevation: 30--1200 m. Bioregional Distribution: NW, CaRF, SNF, ScV, CW, SW; Distribution Outside California: to Washington, Baja California. Flowering Time: Mar--May Note: Highly variable; several +- separable forms.
Synonyms: Alchemilla occidentalis Nutt.
Unabridged Note: Highly variable, with several +- separable forms. Relation to species of Mediterranean unclear. northern NCo plants with more hidden flowers resemble Aphanes microcarpa (Boiss. & Reut.) Rothm. of eastern North America, Europe. Aphanes arvensis L. (larger plants) weedy in Oregon, Washington.
Jepson eFlora Author: Barbara Ertter
Unabridged Reference: Rothmaler 1937 Fedde Rep Sp Nov Regni Veg 42:164--173
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Botanical illustration including Aphanes occidentalis

botanical illustration including Aphanes occidentalis

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Citation for this treatment: Barbara Ertter 2012, Aphanes occidentalis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=13608, accessed on May 27, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on May 27, 2019.

Aphanes occidentalis
click for enlargement
© 2008 Chris Winchell
Aphanes occidentalis
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© 2005 Steve Matson
Aphanes occidentalis
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© 2009 Keir Morse
Aphanes occidentalis
click for enlargement
© 2008 Chris Winchell
Aphanes occidentalis
click for enlargement
© 2005 Steve Matson
Aphanes occidentalis
click for enlargement
© 2008 Chris Winchell

More photos of Aphanes occidentalis in CalPhotos



Geographic subdivisions for Aphanes occidentalis:
NW, CaRF, SNF, ScV, CW, SW
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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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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.
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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.