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 ornament, 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.
Habit: Perennial herb, generally +- glandular, generally resinous-smelling; caudex generally branched. Stem: generally ascending to erect. Leaf: generally basal, odd-1-pinnately compound, generally +- flat; cauline alternate, reduced upward; leaflets 2--15 per side, uppermost lateral generally +- fused with terminal. Inflorescence: cyme; pedicels generally straight, bractlets 0. Flower: hypanthium cup-like, +- flat-bottomed, width +- 2 × length, bractlets 5, generally 2/3 sepals; sepals often reflexed; petals generally +- = sepal, blunt, white; stamens 10, filaments +- flat, often forming a tube; pistils 2--many, ovary superior, style attached below fruit tip, +- thicker at base. Fruit: achene. Etymology: (J. Horkel, German plant physiologist, 1769--1846) Note: Many attractive to bees; data apply to basal leaves, pressed hypanthia. eFlora Treatment Author: Barbara Ertter Reference: Ertter & Reveal 2007 Novon 17:315--325
Horkelia californica Cham. & Schltdl.
NATIVE Habit: Plant clumped, green. Stem: 10--120 cm. Leaf: stipules entire; leaflets +- separated, +- ovate to round, +- hairy. Inflorescence: open, of few to many separate flowers and few-flowered clusters; pedicels generally 1--20 mm. Flower: hypanthium width 4--10 mm, 1--2 × length, bractlets +- 4--6 mm, generally +- 2 mm wide, ovate, often toothed; sepals generally 4--6 mm; petals 3--8 mm, generally oblanceolate to elliptic; anthers 0.8--1.8 mm; pistils generally > 50. Fruit: +- 1 mm. Note: Often confused with Drymocallis species (terminal leaflets distinct). Varieties intergrade. Jepson eFlora Author: Barbara Ertter Reference: Ertter & Reveal 2007 Novon 17:315--325 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Horkelia bolanderi Next taxon: Horkelia californica var. californica
Citation for this treatment: Barbara Ertter 2012, Horkelia californica, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=28403, accessed on October 03, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on October 03, 2024.
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(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 occurrence).
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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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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).
