Species: Cirsium undulatum
Common name: wavy leaf thistle

Seedling Identification: These seedlings look very similar to Scotch thistle (Onopordum acanthium) seedlings. However the first leaves of wavy leaf are less lobed and have very fine spines off the leaf edges.

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Cirsium undulatum – wavyleaf thistle
Average number of good seeds per gram bulk matter: n.m.
Average number of good seeds per gram cleaned: 109 (46)
Commercial estimates of seeds per gram: n.a.
Percent seed: n.m.
Percent live: 67
Collection dates: July 20; August 16; October 6 and 20
Collection effort: 40 grams in 5 person hours
Collection notes: Relatively common and easy to collect however it tends to have a lot of insect damage.
Cleaning notes: Most appeared to be pure seed however a few might have been buggy or empty.