Menziesia ferruginea
| Menziesia ferruginea | ||||||||||||
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Menziesia ferruginea |
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| Menziesia ferruginea | ||||||||||||
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Menziesia ferruginea is a plant from the genus of Menziesia in the family of the Ericaceae (Ericaceae). Their range includes the northwest and west of North America.
description
Menziesia ferruginea grows as an upright, richly branched shrub that can reach heights of 1 to 2.5 meters and often forms thickets. The bark of young twigs is hairy finely to glandular. The bark of the older branches is cracked and bare.
The alternate leaves, which are heaped at the branch ends, are divided into a petiole and a leaf blade. The petiole is 2 to 4 millimeters long. The elongated-elliptical to oval-elliptical, 3 to 6 centimeters large, sit on a The leaf margins are glandular-eyelashed, that is, there are hairs sideways from the leaf margin. The underside of the leaf is light green in color, while the upper side is densely glandular or hairy.
The flowering period extends from May to July, with the flowers appearing at the same time as the first leaves. The flowers hang or stand upright on 1 to 3 centimeters long, slightly hairy pedicels. The 6 to 10 millimeters long and around 5 millimeters wide flowers are slightly zygomorphic and usually four, rarely five, with a double flower envelope . The four, rarely five sepals are fused. The greenish to yellowish petals usually have a reddish or bronze-colored tint. The four, rarely five petals are fused. The nectar-rich flower base has eight, only indistinctly recognizable notches. The awl-shaped stamens are hairy at the base. The spherical ovary is glandular, but has no hair. The mostly bald capsule fruits are ovate to oblong ovoid with a length of 5 to 8 millimeters. The dull brown seeds are elongated with a length of 2.5 to 3 millimeters. Each seed has two appendages about 1 millimeter long.
The basic chromosome number is x = 13; there is diploidy , as 2n = 26.
Occurrence
The natural range of Menziesia ferruginea includes the northwest and western North America in Canada and the USA. In Canada, Menziesia ferruginea is found in Yukon , British Columbia and Alberta . In the United States, it occurs in Alaska, Washington, Idaho, Montana, Wyoming, Oregon, and California.
Menziesia ferruginea can be found in damp and shady forests as well as on stream banks at altitudes of 700 to 1900 meters.
Systematics
Menziesia ferruginea was made in 1791 by James Edward Smith Synonyms of Menziesia ferruginea Sm. Are: Menziesia ferruginea subsp. glabella (A.Gray) Calder & Roy L.Taylor , Menziesia ferruginea var. glabella (A.Gray) M.Peck , Menziesia glabella A.Gray . The subtaxa of the older literature could not be confirmed by chemical or morphological investigations.
In LA Craven: Diplarche and Menziesia transferred to Rhododendron (Ericaceae). In: Blumea , Volume 56, 2011, p. 34 doi : 10.3767 / 000651911X568594 this species was identified as a subspecies Rhododendron menziesii Craven subsp. menziesii of the species Rhododendron menziesii to the section Sciadorhodion in the subgenus Azaleastrum within the genus Rhododendron .
use
Because of the autumn colors of the leaves, Menziesia ferruginea is grown as an ornamental plant. The leaves and branches were previously used as medicine by the Indians. Since the leaves contain andromedotoxin , it can cause symptoms of poisoning in both humans and animals.
swell
- Dorothy M. Fabijan: Menziesia. : Menziesia ferruginea , p. 451 - the same text online as the printed work , In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico. Volume 8 - Paeoniaceae to Ericaceae , Oxford University Press, New York and Oxford, 2009, ISBN 978-0-19-534026-6
Individual evidence
- ↑ a b c d e f g h Dorothy M. Fabijan: Menziesia. : Menziesia ferruginea , p. 451 - the same text online as the printed work , In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico. Volume 8 - Paeoniaceae to Ericaceae , Oxford University Press, New York and Oxford, 2009, ISBN 978-0-19-534026-6
- ↑ a b Rhododendron menziesii subsp. menziesii in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved July 14, 2014.
