hairs; leaves somewhat unequally pinnate; basal leaves several and somewhat 

 rosulate, with adnate stipules; cauline leaves several, reduced upwards but the 

 stipules becoming free and leafletlike above; leaflets mostly 9 to 17, oval to ovate- 

 oblong, 1-2 cm. long, coarsely serrate; spikes globose to ovoid, 8-20 mm. long, 

 about 10 mm. thick; bractlets ovate, ciliate; flowers mostly imperfect, the lower 

 ones staminate, the upper ones pistillate, a few often perfect; calyx greenish to 

 rose-tinged; in fruit the hypanthium urceolate, 4—5 mm. long, woody, very 

 prominently papillate-warty between as well as along the rather prominent ridges; 

 stamens about 12, the filaments filiform; pistils and achenes 2. 



In wet meadows about lakes and in waste places, in N. M. (Otero Co.), June- 

 Aug.; nat. of Eur. that is introd. in various parts of N. A. 



10. Rosa L. Rose 



Woody perennials, upright or trailing, usually with prickly stems; leaves alter- 

 nate, compound or rarely simple, typically with adnate stipules or these rarely 

 absent; leaflets 3 to 15, serrate or biserrate, often pubescent and glandular; 

 flowers perfect, solitary, corymbose or paniculate; sepals 5, rarely 4; petals 5, 

 rarely 4 or (by transformation of the stamens) numerous, obovate to obcor- 

 date; stamens numerous, inserted on a disk at the margin of the hypanthium; 

 ovaries numerous within the hypanthium; styles connate or free, included or 

 exserted; stigmas thickened; hypanthium urceolate or globose, contracted at the 

 mouth, becoming fleshy at maturity (the hip) ; fruit an achene. 



Probably a little more than 200 valid cosmopolitan species that are native 

 mainly in the Northern Hemisphere. 



Rose hips provide food throughout the year for most wildlife, and browsers 

 nibble the vegetation. Also, a tasty jelly said to be high in Vitamin C can be 

 prepared from the hips. Excellent nesting sites and protective cover are provided 

 by thickets of wild roses for game birds and songbirds. 



1. Prickles of the stem straight or nearly so, typically very slender; rachis and 

 petiole densely glandular-puberulent; sepals sparingly glandular 

 dorsally 1. R. Fendleri. 



1. Prickles of the stem mostly recurved, typically rather stout; rachis and petiole 

 finely puberulent; sepals dorsally glabrate, tomentose on the margins 

 2. R. arizonica. 



1. Rosa Fendleri Crep. 



Stem low, 1 m. high or less, reddish, terete, armed with a few prickles that 

 are slender, straight and 5 mm. long or less; stipules glandular-pruinose oni the 

 back, more or less glandular-dentate; rachis and petiole densely glandular-puberu- 

 lent and often somewhat glandular-hispid or with weak prickles; leaflets 5 or 7, 

 elliptic to oval or obovate, 1-3 cm. long, rather thin, green and glabrous above, 

 slightly paler, puberulent and glandular-pruinose beneath, often doubly-serrate; 

 hypanthium globose, glabrous, in fruit 8-10 mm. broad; sepals sparingly 

 glandular on the back; petals rose-colored, obcordate, about 1.5 cm. long. R. 

 Woodsii Lindl.var. Fendleri. (Crep.) Rydb. 



On wet seepage banks along streams and on sandstone rocks in w. Okla. 

 (Panhandle), N. M. (widespread) and Ariz. (Apache, Coconino, Yavapai and 

 Cochise cos.), June-Aug.; Minn, to B. C, s. to n. Mex. 



2. Rosa arizonica Rydb. 



Stem low, much-branched, to 1 m. high or less, armed with small recurved 

 prickles 3-5 mm. long; bark in age becoming almost white and exfoliating; floral 

 branches 1 dm. long or less, often unarmed; stipules adnate, less than 1 cm. long, 

 the upper dilated, finely puberulent; rachis and petioles finely puberulent; leaflets 



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