Glaucidium palmatum

Glaucidium palmatum
Glaucidium palmatum
Systematics
Eudicotyledons Order : Buttercups (Ranunculales) Family : Buttercup Family (Ranunculaceae) Subfamily : Glaucidioideae Genre : Glaucidium Type : Glaucidium palmatum
Scientific name of the  subfamily
Glaucidioideae
( Tamura ) Loconte
Scientific name of the  genus
Glaucidium
Siebold & Zucc.
Scientific name of the  species
Glaucidium palmatum
Siebold & Zucc.

Glaucidium palmatum is the only species of the genus Glaucidium and the subfamily Glaucidioideae in the buttercup family(Ranunculaceae). Because it differs more strongly from all other members of this family, some authors also place it in a separate family, the Glaucidiaceae.

features

Glaucidium palmatum is a perennial herbaceous plant that reaches heights of 20 to 40 centimeters. It forms a rhizome . The stem has two leaves and a terminal flower . The basal leaves are palmate, lobed to split, have a more or less circular outline and a heart-shaped blade at the base. Your petioles are 10 to 15 inches long.

Glaucidium palmatum

The flowers are 5 to 10 centimeters in diameter. The perianth is simple. The four bracts are light blue-purple in color, rarely white. The two carpels are fused together at the base, many-seeded and bellows-like at the fruiting time.

The flowering period extends from April to May.

The number of chromosomes is 2n = 20.

Occurrence

Glaucidium palmatum occurs in Japan on Hokkaidō and on northern and central Honshū in mountain forests.

Systematics

Since Glaucidium palmatum differs from other species of the buttercup family in terms of cytological, embryological, biochemical and the way in which the stamens develop and the way the fruits open, this species is sometimes placed in its own monotypical family Glaucidiaceae. According to genetic data, the genus is the sister group of all other recent buttercups taken together.

use

Glaucidium palmatum is rarely used as an ornamental plant for groups of trees. The 'Alba' variety has white flowers.

literature

• Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler excursion flora from Germany. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 .

Individual evidence

1. ^ Glaucidium palmatum at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
2. ↑ Guillaume Cossard, Julie Sannier, Hervé Sauquet, Catherine Damerval, Louis Ronse de Craene, Florian Jabbour, Sophie Nadot (2016): Subfamilial and tribal relationships of Ranunculaceae: evidence from eight molecular markers. Plant Systematics and Evolution 302 (4): 419-431. doi: 10.1007 / s00606-015-1270-6

Web links

Commons : Glaucidium palmatum  - Collection of images, videos and audio files