Tuesday, August 20, 2013

Question for the Hive Mind: Roadside Weeds / Wildflowers

The second and third of these are technically not roadside plants, but the first one is:

I don't recall ever seeing it before, but they're everywhere all of a sudden.

UPDATE: it's a Vernonia (ironweed), possibly V. baldwinii. Thanks to Claude and joeym.

The other two plants were in a heavily wooded park in Iowa City about a week ago. The first, I'm fairly sure, is some kind of Arisaema. I don't know if it's possible to narrow it down to a species from these pictures or not.

UPDATE: Everybody seems pretty convinced that this is Arisaema triphyllum (jack in the pulpit). Thanks to Ed Kramer, joeym, and anonymous.

The other plant from the park has flowers reminiscent of both chicory (Cichorium intybus) and meadow campion (Silene latifolia), but it's not either of those. Something related?

UPDATE: Looks like this is a Lactuca sp., possibly Lactuca floridana. Thanks to The Phytophactor and Review for their help.

Any guesses on any of these?


Claude said...

The actual roadside weed looks like Veronia Baldwinii, aka western ironweed, or Baldwins ironweed. I know they're in Iowa, but I'm not certan about your area. The others, nip idea...

Ed Kramer said...

The first one looks like Joe Pye Weed -Eupatorium fistulosum, the second Jack In The Pulpit - Arisaema triphyllum - both of which I have had in my back yard. The Arisaema spreads like a weed for me from seeds - it pops up everywhere. No clue on the third. It looks like a white flowered Sow Thistle - Sonchus oleraceus.

joeym said...

The first plant with the purple flowers is commonly known as ironweed. I live in Kansas and they are everywhere this year. The second plant looks like Arisaema triphyllum or Jack-in-the Pulpit.

Anonymous said...

joe pye weed
jack in the pulpit

The Phytophactor said...

I'll go with a wild lettuce for the last one, a Lactuca. Does it have milky sap?

mr_subjunctive said...

The Phytophactor:

I didn't check.

Review said...

The last one looks like woodlaand lertuce (Lactuca floridana)