E-Flora BC: Electronic Atlas of the Flora of British Columbia

Amelanchier alnifolia var. semiintegrifolia (Nutt.) Nutt. ex M. Roem. (Hook.) C.L. Hitchc.
saskatoon (Saskatoon serviceberry)
Rosaceae (Rose family)

Introduction to Vascular Plants

© Brian Klinkenberg  Email the photographer   (Photo ID #14401)

E-Flora BC Static Map
Distribution of Amelanchier alnifolia var. semiintegrifolia
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Species Information

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General:
Shrub or rarely a small tree, 1-6 (10) m tall; stems slender, smooth; twigs smooth, reddish-brown; bark greyish to red-brown; sometimes spreading by rhizomes or stolons and forming dense colonies.
Leaves:
Alternate, deciduous, oval to oblong-elliptic or nearly round, saw-toothed mostly on top half but sometimes nearly entire, broadly rounded to somewhat squared-off at the tip, smooth to variously hairy at least below; blades 2-5 cm long, stalks 0.5-2 cm long.
Flowers:
Inflorescences short, drooping to erect, leafy or bracted, terminal racemes at the ends of branches; flowers 3 to 20, on slender ascending stalks; corollas white, the petals 5, linear to lanceolate, 6-25 mm long; calyces 5-lobed, the lobes lance-triangular, 1-5 mm long, the hypanthium 1-2 mm long; ovaries inferior, smooth or hairy on top; stamens about 20.
Fruits:
Berry-like pomes (like miniature apples), crowned with the persistent calyx, globe- to egg-shaped, 5-14 mm long, dull red initially, becoming purple to nearly black, with a white bloom.
Notes:
Four intergrading varieties occur in BC:

1. Petals less than 12 mm long; tops of ovaries strongly hairy.

2. Flowers generally with 4 styles; leaves entire or with a few tiny teeth near tips................. var. humptulipensis (G.N. Jones) C.L. Hitchc.

2. Flowers generally with 5 styles; leaves usually strongly toothed on upper half..................... var. alnifolia

1. Petals over 12 mm long; tops of ovaries hairy or smooth.

3. Petals generally less than 16 mm long and 4 mm wide; calyx lobes averaging less than 3 mm long; top of ovary woolly....................var. semiintegrifolia (Hook.) C.L. Hitchc.

3. Petals generally greater than 16 mm long and up to 8.5 mm wide; calyx lobes averaging more than 3 mm long; top of ovary smooth to moderately hairy...................... var. cusickii (Fern.) C.L. Hitchc.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
White
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Purple
Present over the Summer
Source:  The USDA

Habitat / Range

Dry to mesic, open rocky slopes, bluffs, gullies, thickets, forest margins and open forests in the lowland to subalpine zones; common throughout BC, especially in C and S BC, east of the Coast-Cascade Mountains; N to AK, E to AB and S to CA, NE, ND, CO and AZ.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Amelanchier alnifolia subsp. florida (Lindl.) Hultén
Amelanchier florida Lindl.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References