Prunus dulcis |
Prunus spinosa |
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almond |
blackthorn |
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Habit | Deciduous, rigid, thorny shrub, 1-4 m. tall, often forming dense thickets; twigs blackish, often downy when young. | |
Leaves | Leaves alternate, elliptic-ovate to obovate, finely serrate, 2-4 cm. long, not shiny. |
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Flowers | Flowers solitary from each of the numerous nodes of the spur, appearing before the leaves; pedicels glabrous, 10-15 mm. long; calyx glabrous; petals 5, white, oblong-obovate, 5-7 mm. long. |
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Fruits | Drupe globose, deep bluish-purple, glaucous, 10-15 mm. broad; pit sub-globose, rough-pitted. |
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Prunus dulcis |
Prunus spinosa |
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Flowering time | March-May | April-May |
Habitat | Disturbed areas, mostly along riparian zones and rocky slopes. | Moist draws, thickets, hillsides, roadsides, and railroads. |
Distribution | Occurring in scattered locations east of the Cascades crest and in the Columbia River Gorge in Washington; Washington, Idaho, and California.
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Occurring in scattered locations on both sides of the Cascades crest in Washington; southwestern British Columbia to southern Oregon, east to Idaho.
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Origin | Introduced from western Asia and northern Africa | Introduced from Eurasia and northern Africa |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
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