Yellow Archangel
Scientific name: Lamiastrum galeobdolon (L.) Ehrend. & Polatschek
Diagnostic features
Flowering stems erect, to 60cm.
Stolons leafy, rooting at nodes, often more than 1m.
This species is keyed out on Page 3149: Lamiastrum, Lamiastrum galeobdolon in the Text Key.
Key to the subspecies:
1a. Most leaves with large conspicuous whitish blotches for whole year; fruiting calyx (11.5)12mm or more; upper lip of corolla (7.5)8mm wide or wider.
............................ Lamiastrum galeobdolon argentatum.
1b. Leaves without whitish blotches, or some with white marbling early in year; fruiting calyx up to 12(12.5)mm; upper lip of corolla up to 8(8.5)mm wide.
........................... 2.
2a. Bracts 1-2(2.2)x as long as wide, obtusely serrate; flowers up to 8(9) per node, at up to 4(5) nodes; flowering stems with hairs ± confined to 4 angles.
........................... Lamiastrum galeobdolon galeobdolon.
2b. Bracts (1.5)1.7-3.6x as long as wide, acutely serrate; flowers (7)10 or more per node, at (3)4 or more nodes; flowering stems with hairs on faces as well as angles.
........................... Lamiastrum galeobdolon montanum.
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