|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: Rosa||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Rosa nutkana C. Presl
Habit: Shrub or thicket-forming, generally 5--20 dm. Stem: prickles paired or not, 10--20 mm, generally +- compressed and thick-based, +- straight to +- curved. Leaf: axis +- hairy, glandular; leaflets generally 5--7, sparsely hairy; terminal leaflet +- 15--50(60) mm, +- wide-elliptic to -ovate, widest at or below middle, tip +- obtuse. Inflorescence: generally 1(6)-flowered; pedicels generally +- 10--20 mm, variously glabrous, hairy, and/or glandular. Flower: hypanthium generally 5--7 mm wide at flower, glabrous, glandular or not, neck 3--6 mm wide; sepals generally glandular, entire, tip generally > body, toothed; petals 15--25 mm, pink; pistils generally 30--60. Fruit: (10)13--20 mm wide, generally +- spheric; sepals generally erect, +- persistent; achenes generally 4.5--6 mm. Chromosomes: n=21.
eFlora Treatment Author: Barbara Ertter
Jepson Online Interchange
Previous taxon: Rosa multiflora
Next taxon: Rosa nutkana subsp. macdougalii
Citation for this treatment: Barbara Ertter 2017. Rosa nutkana, in Jepson Flora Project (eds.) Jepson eFlora, Revision 2, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=41670, accessed on April 30, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 30, 2017.