Mountain Hollyhock
Iliamna rivularis
(Dougl. ex Hook.) Greene
Family: Malvaceae, Mallow
Genus: Iliamna


Description
General: stout, bushy, leafy, perennial herb covered with
sparse, star-shaped hairs, 0.5-2 m tall, from rhizomes.
Leaves: alternate, the blades 4-10 cm long, broadly
heart-shaped, 5- to 7-lobed, on stalks 5-10 cm long, the
lobes triangular, pointed, coarsely sharp- to blunt-toothed
and finely covered with star-shaped hairs.
The 2 stipules at base linear-lanceolate, about 1 cm long.
Flowers: flowers rose-purplish, broadly cup-shaped, 1 to
several in elongated clusters on stout stalks mostly less
than 1 cm long from the leaf axils. The 5 calyx lobes joined
about half their length, about 3-5 mm long, triangular. The 3
bracteoles of the calyx linear to lanceolate. The 5 broad
petals about 2 cm long, rounded or slightly notched at the
middle. The numerous stamens joined to a tube at the
base but freed on the upper 3/4 part.
Flowering time: June-August.
Fruits: capsules, round, flattened lengthwise, cheese-
shaped, composed of several wedge-shaped segments,
these about 8 mm long, the sides smooth, the back with
long stiff brownish hairs and tiny soft star-shaped hairs.
Seeds covered with fine, minute prickles.

Distribution
Moist, wooded or disturbed areas, meadows, stream
banks, foothills to subalpine, in w. and s.c. parts of MT.
Also on the e. side of the Cascades, B.C. to OR and CO.
(click on image for full size)


Contents
Identification
English Names Index
Scientific Names Index
Family Index
var. rivularis:
(click on images for full size)

Varieties:

var. diversa (A. Nels.) Wiggins:
Leaves 3- to 5-lobed with straight bases. Occasional from c. ID to Yellowstone Nat. Park.

var. rivularis (Dougl. ex Hook.) Greene:
Leaves 5- to 7-lobed with heart-shaped bases. Common and widespread.

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