Weed
stickywilly, Marin County bedstraw
AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
Globose
Gray to dark brown
Roughly tuberculateTuberculate:
Having small pimple-like protuberances.
with hooked hairs
Large, circular hole at the scar location
If the acheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat. loses its outer coat (pericarpPericarp:
Fruit wall; derived from the ovary wall.
), the enclosed seed is smooth and glabrousGlabrous:
Lacking hairs or pubescence.
. Achene is round and globular except for the large hole on one side. Galium spp. are identified by the ornamentation of the surface.
State Noxious Weed: Connecticut, Massachusetts, New Hampshire, Pennsylvania, Vermont, Washington, West Virginia
Included
For more information, see ISMA fact sheet.
Rubiaceae
Galium aparine L.
Galium agreste Wallr. var. echinospermum
Galium aparine L. var. echinospermum (Wallr.) Farw.
Galium aparine L. var. intermedium (Merr.) Briq.
Galium aparine L. var. minor Hook.
Galium aparine L. ssp. spurium (L.) Simonkai
Galium aparine L. var. vaillantii (DC.) Koch
Galium spurium L.
Galium spurium L. var. echinospermum (Wallr.) Hayek
Galium spurium L. var. vaillantii (DC.) Gren. & Godr.
Galium spurium L. var. vaillantii (DC.) G. Beck
Galium vaillantii DC.
