Posts Tagged ‘Big Pine Opening’

Purple Milkweed Emerging on Milkweed Ridge

Purple milkweed is tinged with purple as it emerges, and its inflorescence is already well developed.

With my showy milkweed (Asclepias speciosa) at home emerging from the ground, I hoped the purple or heartleaf milkweed (A. cordifolia) would be up in the Rigdon area in southeastern Lane County. On May 2, I headed down to see if I could find the first plants. I started out by climbing up the hill at Big Pine Opening, the one site visible from Road 21 and the lowest elevation site in the area at 2300′. The milkweed is only in the northeast corner, above an old quarry, but it is a very healthy population. Sure enough, they were up! Having never seen them this early in the season, I was quite surprised to find the flower heads already formed as they emerge. They must be in a hurry to bloom! The plants come up quite dark, their glaucous leaves suffused with red-violet. This makes them quite easy to spot against green grass but hides them well in bare soil. They are often found in very rocky areas, but sometimes they seem to be happy enough in meadows with no rocks but perhaps gravelly soil beneath. I’m still trying to get an idea of their preferred habitats, but they certainly seem to want to be in well-drained soil. Read the rest of this entry »

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