Comments
(
Inglês
)
fornecido por eFloras
This infrequent dwarf birch is distinguished from Betula nana mostly on the basis of its reduced infructescence scales and wetter habitat (J. J. Furlow 1984), characteristics that are also occasionally noted in B . nana . It perhaps might better be treated as a race of that species; in the absence of thorough study of this complex, however, it seems best to follow the traditional treatment (M. L. Fernald 1950c; J. Rousseau and M. Raymond 1950).
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
Inglês
)
fornecido por eFloras
Shrubs , spreading, dwarfed, to ca. 0.5 m. Bark dark brown, smooth, close; lenticels pale, inconspicuous, circular. Twigs without taste and odor of wintergreen, moderately to densely pubescent, not conspicuously resin-coated, without large, warty, resinous glands. Leaf blade obovate--reniform, with 2--3 pairs of lateral veins, 0.5--1 × 0.5--1.2 cm, base cuneate, margins deeply crenate-dentate, apex broadly rounded to nearly truncate; surfaces abaxially usually glabrous. Infructescences erect, short-cylindric, 0.5--1 × 0.5--0.8 cm, shattering with fruits in fall; scales unlobed (lateral lobes sometimes present but greatly reduced), glabrous. Samaras with wings not apparent or reduced to narrow ridges.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
(
Inglês
)
fornecido por eFloras
St. Pierre and Miquelon; Nfld., N.S., Que.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
(
Inglês
)
fornecido por eFloras
Sphagnum bogs, around pools, and wet peaty meadows; 0--700m.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
(
Inglês
)
fornecido por eFloras
Betula terra-novae Fernald
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA