‡‡ Spikelets 4-6 flowered.
≡ Annuals, about six inches high, with relatively large and numerous spikelets for so small a panicle. No “web" at the base of the paleæ.
P. annua, L.
This is the small grass so common as a weed on roadsides and on lawns, flowering even in winter. For other annual species of Poa—P. rigida, P. loliacea and P. procumbens—see note p. [108] and p. [111].
≡ ≡ Perennials.
Δ With creeping stolons.
x Stems and leaf-sheaths flattened. Panicle somewhat close and secund, some spikelets being nearly sessile.
P. compressa, L.
xx Stems and leaf-sheaths terete. Panicle spreading widely.
P. pratensis, L.