• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

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  • Trail Closure Information

    The Highland Creek Trail is closed. Backcountry Zones 1 and 2 are closed to all off-trail travel and use. The Sanctuary and Centennial Trails remain open to through traffic.

  • Temporary Road Closure Information

    Oct. 18 & 19: NPS 5 and 6 are closed for the entire weekend. Monday, Oct. 20, through Wednesday, Oct. 22, NPS 5 will be closed from Highway 87 to NPS 6. Highway 87 will be closed from Road 342 (Beaver Creek Road) north to the park boundary.

Seed Study - Polygonum convolvulus

Convolvulus arvensis - Field Bindweed - awaiting photo

Polygonum convolvulus - Black Bindweed - awaiting photo

NPS Photo

Species: Polygonum convolvulus
Common name: black bindweed

Seedling Identification: Cotyledons are dull green and strap-like. First true leaves are hastate, often have a reddish tinge at the base of the leaf, and the side margins are often rolled under.

Thanks to Rick Shory, NREL-Colorado State University, for identification and description.

 

Did You Know?

Stemless Hymenoxys

The scientific name for the Stemless Hymenoxys is Hymemoxys acaulis. Acaulis means "stemless" and referes to the leafless stalks which bear the flower heads. More...