|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Rosaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Perennial herb, nonglandular. Leaf: alternate, odd-1-pinnately compound; leaflets toothed < 1/3 to midvein. Inflorescence: spike, head-like; pedicel bractlets 2, subtended by 1 bract. Flower: bisexual or pistillate; hypanthium urn-shaped, bractlets 0; sepals generally 4; petals 0; stamens many; pistils (1)2(3), ovaries superior, continuous to style at top, stigma generally +- bushy, exserted. Fruit: hypanthium hard, 4-angled, enclosing achene(s). Chromosomes: 2n=28,56.
Species In Genus: 13 species: Europe, Asia. Etymology: (Greek: goblet or beaker)
eFlora Treatment Author: Daniel Potter & Barbara Ertter, family description, key to genera; treatment of genera by Daniel Potter
Jepson Online Interchange
Previous taxon: Poteridium annuum
Next taxon: Poterium sanguisorba
Citation for this treatment: Daniel Potter & Barbara Ertter, family description, key to genera; treatment of genera by Daniel Potter 2016. Poterium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=69114, accessed on September 29, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 29, 2016.