Evergreen lark spur
| Evergreen lark spur | ||||||||||||
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Corydalis sempervirens from The botanical magazine , 1792 |
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| Corydalis sempervirens | ||||||||||||
| ( L. ) Pers. |
The evergreen lark spur ( Corydalis sempervirens ) is a species of plant found in North America of the subfamily of the fume family (Fumarioideae) within the poppy family (Papaveraceae). The first description of the species was published in 1753 by Carl von Linné in Species Plantarum .
description
The bluish green, biennial herbaceous plant usually has an upright stem 30 to 80 centimeters long and is richly branched. The foliage leaves growing at the bottom of the stem have long stalks, the leaves growing above are almost sessile and reduced. The leaves are pinnate, the lower leaves with five leaflets, the upper leaves with three leaflets; the leaflets are first divided into three parts, then incised once or twice, the leaflets elongated-elliptical, the leaf base obtuse-angled, pointed.
The inflorescence is a raceme or panicle with one to eight flowers. The bracts of the flowers are elliptical, 2 to 5 millimeters long and 0.5 to 1 millimeter wide. The flower stalks are 5 to 20 millimeters long. The flowers are tinged with pink and yellow, they have a 3 to 4 millimeter long sac-like spur. The fruit is an upright, 25 to 35 millimeters long, straight or slightly curved, slender pod ; the numerous black shiny seeds have a diameter of about 1 millimeter.
The flowering period extends from mid-May to mid-September, the fruiting period from early June to late September.
Location claims and distribution
This species colonizes shallow, often dry soils, rock banks, crevices and scree slopes, as well as burnt or otherwise disturbed soil conditions at altitudes of 200 to 2000 m. The distribution extends from northeast Georgia to Maine and Newfoundland , west to Montana and British Columbia and northwest to Alaska .
Synonyms
- Fumaria sempervirens L.
- Neckeria sempervirens Neck.
- Fumaria glauca Curt.
- Capnoides glauca Moench
- Capnoides sempervirens Borkh. in Rome.
- Corydalis glauca Pursh
- Corydalis rosea Eaton
- Corydalis annua Hoffmanns. ex Steud.
- Neckeria glauca Millsp.
literature
- Gerald Bruce Ownbey: Monograph of the north-American species of corydalis in Annals of the Missouri Botanical Garden Vol. 34 No. 3, 1947
