[The Milkweed Family in Mt. Adams Country]

Showy Milkweed

Asclepias speciosa

Synonym: Asclepias giffordii

Inflorescence of Showy Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii)

The photo above shows part of the inflorescence of showy milkweed as seen along road K1000 about one mile west of the Mt. Adams Highway on the southeastern flanks of Mt. Adams........July 9, 2006.

Flower of Showy Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii)

The photo above shows a close-up of the fascinating flower of a pink-flowered showy milkweed as seen in grasslands in the Conboy Lake National Wildlife Refuge along Lakeside Road about one-half mile west of Fisher Hill Road........August 10, 2007.

Flower of Showy Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii)

The photo above shows a close-up sideview of the flower of showy milkweed as seen along road K1000 about one mile west of the Mt. Adams Highway on the southeastern flanks of Mt. Adams..........July 9, 2006. The whitish, narrow sepals are poking out from between the longer, pinkish and reflexed corolla lobes. The erect whitish hoods arising from the base of the staminal column are long and narrow, tapering gradually to a point. They measure from 9-12 mm long. Note the whitish appendage or horn which curves inward from the base of each hood.

Sepals of Showy Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii)

The photo above shows a close-up of the underside of a flower of showy milkweed as seen along road K1000 about one mile west of the Mt. Adams Highway on the southeastern flanks of Mt. Adams.........July 9, 2006. Note the short, narrow sepals covered with numerous woolly, white hairs and the triangular lobes of the corolla, in this case pinkish, and less densely covered with whitish hairs than the sepals.

Showy Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii)

The photo above shows part of the inflorescence of showy milkweed as seen along road K1000 about one mile west of the Mt. Adams Highway on the southeastern flanks of Mt. Adams.........July 9, 2006. Note that the reflexed corolla lobes are yellowish in color on this plant.

Showy Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii)

The photo above shows part of the upper stem leaves and inflorescence of showy milkweed as seen along road K1000 about one mile west of the Mt. Adams Highway on the southeastern flanks of Mt. Adams..........July 9, 2006.

Caterpillar munching upon Showy Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii)

The photo above shows a close-up of a caterpillar feeding upon the flower buds of showy milkweed as seen along road K1000 about one mile west of the Mt. Adams Highway on the southeastern flanks of Mt. Adams..........June 17, 2006.

Flower of Showy Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii)

The photo above shows a close-up sideview of a pink-flowered showy milkweed as seen in grasslands in the Conboy Lake National Wildlife Refuge along Lakeside Road about one-half mile west of Fisher Hill Road...........August 10, 2007.

Paul Slichter