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'Rosa carolina L.' rose Reviews & Comments
Discussion id : 96-603
most recent 29 DEC 16 HIDE POSTS
Initial post 29 DEC 16 by Sambolingo
Available from - Prairie Moon Nursery
Discussion id : 96-341
most recent 14 DEC 16 HIDE POSTS
Initial post 14 DEC 16 by CybeRose
Arbustrum Americanum, pp. 135-136 (1785)
Humphry Marshall

3. ROSA humilis. Dwarf Pennsylvanian Rose.
This rises with several slender stems to the height of two or three feet; covered with a brownish green bark, and armed with a few sharp spines. The leaves are composed of three or four pair of lobes, and an odd one, of an oblong egg-shape and sharply sawed on their edges. The leaves of the flower cup have often linear, leafy elongations. The flowers are single and of a pale reddish colour.
Discussion id : 93-200
most recent 5 JUN 16 HIDE POSTS
Initial post 5 JUN 16 by scvirginia
According to the USDA Plants database, Rosa carolina L. has two recognized subspecies:
Rosa carolina L. var. carolina and Rosa carolina L. var. setigera Crép.

The latter subspecies is distinct from Rosa setigera and has a very small native range in the U.S. (Maine, New Hampshire & Vermont). The range may extend into eastern Canada; the USDA Plants maps do sometimes include plant ranges for Canada, but perhaps not consistently?

ITIS (Integrated Taxonomic Information System) gives as subspecies for Rosa carolina L.: Rosa carolina ssp. carolina L. and Rosa carolina ssp. subserrulata (Rydb.) W.H. Lewis. The latter subspecies is considered to be synonymous with Rosa carolina var. setigera Crép. Other synonyms are Rosa X rudiuscula Greene (pro sp.), Rosa palmeri Rydb., Rosa subserrulata Rydb. and Rosa texarkana Rydb.
Discussion id : 60-717
most recent 10 JAN 12 HIDE POSTS
Initial post 7 JAN 12 by Simon Voorwinde
A reference on HMF says that Carolina is diploid ( and its HMF page says it's tetraploid? Are there different varieties of Carolina out there with different ploidies? Which one is right?
Reply #1 of 2 posted 7 JAN 12 by jedmar
Tetraploid is correct. We have added 2 references for this (2006 and 1981). The former article is difficult to understand for non-botanists like me, but it postulates that R. carolina has originated in relatively recent times from various diploid species.
Reply #2 of 2 posted 10 JAN 12 by Simon Voorwinde
Thankyou, Jedmar.
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