What’s a dichotomous key?
Help
Parietaria
See list of 2 species in this genusParietaria floridana Nutt was reported from NH by several sources (e.g., Seymour 1982, Magee and Ahles 1999). The voucher specimen was determined to be P. hespera Hinton var. hespera, a species of the southwestern United States (David Boufford, personal communication). The occurrence of this species in New England is doubtful and the label information is likely erroneous (i.e., a label mix-up occurred during preparation of the specimen).
-
1a. Plants annual; achenes light brown, obtuse at the apex, with an apical mucro; tepals 1.5–2 mm long, shorter than the bracts
-
1b. Plants perennial; achenes dark brown, acute at the apex, without an apical mucro; tepals mostly 2–3.5 mm long, longer than the bracts
Show photos of:
Each photo represents one species in this genus.