Agastache nepetoides yellow giant hyssop Lamiaceae AGNE; Bx, pb (DeCandido 2001); Q (DeCandido 2001); R, c (possibly extirpated);

Agastache nepetoides. David G. Smith. Discoverlife.org.jpg

Agastache nepetoides. David G. Smith. Discoverlife.org.jpg (Accessed 7/2017).

Agastache nepetoides is a perennial herb to 1.5 m tall; branched above, stem square, winged.

Leaves opposite, egg-shaped, to 6 cm long, smaller above, margin toothed.

Agastache nepetoides inflorescence. David G. Smith. Discoverlife.org.jpg

Agastache nepetoides inflorescence. David G. Smith. Discoverlife.org.jpg

Flowers pale yellow-green, tubular, bilaterally symmetrical, calyx 0.6 cm, lobes egg-shaped, tips blunt; inflorescence terminal, of dense spikes to 20 cm long, 1cm wide; blooming and fruiting July-Sept.

Fruit dry, 1-seeded, (achenes) hairy at one end.

Wetland status: FACU.

Frequency in NYC: Rare (NYS S2S3, U).

Origin: Native.

Habitat: Partial shade, edges of successional growth woodlands, weedy, somewhat disturbed areas. Populations seem to come and go with open sites created by disturbance (Gargiullo personal observation).