Comments
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englanti
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tarjonnut eFloras
Populations of Cryptogramma cascadensis were previously identified as C . acrostichoides .
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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englanti
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tarjonnut eFloras
Stems decumbent to erect, much branched from base, stout, 4--8 mm diam. (including hardened, persistent leaf bases); scales often bicolored, dense, broadly lanceolate to linear, to 6 × 2 mm. Leaves strongly tufted, deciduous; sterile leaves spreading, 3--20 cm; fertile leaves erect, 5--25 cm; petioles, costae, and costules glabrous. Petiole green to straw-colored, dark brown only on proximal 1/8 or less, ca. 1 mm wide when dry, collapsing and strongly furrowed; scales bicolored or ± concolored, becoming sparse distally. Blade deltate to ovate-lanceolate, all 2--3-pinnate, herbaceous, thin and translucent when dried, hydathodes superficial. Segments of sterile leaves oblong to fan-shaped, bases cuneate, distal 1/2--1/3 of each segment regularly dentate and often more deeply incised every 2d and 4th tooth; segments of fertile leaves ascending to erect, strongly differentiated from those of sterile leaves, linear, 3--12 × 1--2 mm; fertile segments revolute, covering sporangia. Sporangia in sori that coalesce at maturity. 2 n = 60.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
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englanti
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tarjonnut eFloras
B.C.; Calif., Idaho, Mont., Oreg., Wash.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
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tarjonnut eFloras
New growth produced in spring, spores maturing in late summer and autumn, leaves dying in autumn. Talus slopes and cliff crevices, often on igneous rocks, typically in relatively mesic subalpine habitats; 900--3500m.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Cryptogramma cascadensis: Brief Summary
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englanti
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tarjonnut wikipedia EN
Cryptogramma cascadensis is a species of fern known by the common names Cascade parsley fern and Cascade rockbrake.
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