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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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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).
110 genera, ± 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. [Potter et al. 2007 Plant Syst Evol 266:5–43] Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis. —Scientific Editors: Daniel Potter, Thomas J. Rosatti.
Unabridged references: [Robertson 1974 J Arnold Arbor 55:303–332, 344–401, 611–662]
Key to Rosaceae
1 sp.: northern temperate North America, Europe. (Latin: goat's beard, for inflorescence)
Perennial herb; rhizome stout; dioecious. Stem: 1–2 m, glabrous. Leaf: < 60 cm, 2–3-pinnately compound, petioled; stipules 0; leaflets 3–16 cm, ovate, acuminate, 2-serrate, ± hairy. Inflorescence: panicle, < 50 cm; pedicels < 1 mm, bractlet 1, at top. Flower: hypanthium saucer-shaped, bractlets 0; sepals 5, 1–2 mm; petals 5, 1–2 mm, oblong to obovate, white to pale ± yellow. Staminate flower: stamens 15–30, exserted. Pistillate flower: pistils 3(5), styles short. Fruit: follicles 3(5), 3–5 mm, ± cylindric, reflexed, adaxially dehiscent. Seed: ± 2 mm.
2n=18. Moist streambanks, conifer or mixed-evergreen forest; < 1900 m. North Coast, Klamath Ranges, n Outer North Coast Ranges, Cascade Range; to Alaska. [Aruncus acuminatus Rydb.; Aruncus dioicus var. pubescens (Rydb.) Fernald, misappl.] Other varieties in eastern North America. Jun–Sep [Online Interchange]
Previous taxon: Aruncus
Next taxon: Cercocarpus
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 25 2015
Citation for this treatment: [Author of taxon treatment] 2013. Aruncus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=54498, accessed on Nov 25 2015
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|Geographic subdivisions indicated for the distribution of Aruncus dioicus var. acuminatus|| 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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(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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