A fact from Dalea purpurea appeared on Wikipedia's Main Page in the Did you know column on 25 November 2011 ( check views). The text of the entry was as follows: Did you know... that Native Americans used various parts of the purple prairie clover (pictured) for food and to make tea, medicine, and brooms? A record of the entry may be seen at Wikipedia:Recent additions/2011/November. The nomination discussion and review may be seen at Template:Did you know nominations/Dalea purpurea.

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Most refs that could help on this don't even give a common name-- ( The Plant List, for example). I'll check in Flora of the Great Plains as soon as I find my copy, but I really think the hyphen should stay. These names are sometimes concatenated for simplicity-- e.g., Douglasfir or Douglas-fir is clearer than Douglas fir, because this is not a true fir (Abies). Nice article, though! -- Araucana ( talk) 16:14, 25 November 2011 (UTC) reply

Here are two more votes for the hyphen: Plant-Life.org (Montana), Arizona Flora (Kearney & Peebles). -- Araucana ( talk) 18:20, 25 November 2011 (UTC) reply

Also GRIN, which is cited on the page. Nadiatalent ( talk) 18:45, 25 November 2011 (UTC) reply