Study of Common Fleabanes in Austin Metropolitan Area: Genus Erigeron

[1] Daisy Fleabane (E strigosis) vs [2] Philadelphia Fleabane (E philadelphicus) vs [3] Plains Fleabane (E modestus)

Taxonomy:
Erigeron
-Section Quercifolium
-E. strigosis
-Section Phalacroloma
-E. philadelphicus

-E. modestus

Lady Bird Wildflower Center Info:

Bloom time:

  1. April-May
  2. March-June
  3. February-October

Habitat:

  1. N/A
  2. Rich thickets, fields, and open woods
  3. Dry, open, calcareous uplands, Rocky uplands in West, Central and North Central Texas west to New Mexico and Arizona. Well-drained gravel, limestone.

Flora of North America Info:

Height:
1: 30-70cm
2: 4-80cm
3: 8-40cm

Stems:

  1. Erect or ascending
  2. Erect
  3. Ascending to spreading (often multiple from bases; of previous year often persistent)

Leaves, basal:


  1. a. Spatulate (tapered at base, wider at the end) to broadly or narrowly oblanceolate (lance-shaped, but the point at the base) to linear, 30-150mm
    b. Persistent through flowering (usually)

  2. a. Oblanceolate to obovate (Oval, wider at the end), 30–110mm
    b. Persistent or withering by flowering


  3. a. Spatulate to oblanceolate, 20–50mm
    b. Withering by late flowering

Leaves, cauline:

  1. a. Gradually reduced distally ( thinner further out from attachment area, like the leaf)
    b. Margins entire or shallowly to deeply serrate or crenate


  2. a. Oblong-oblanceolate to lanceolate, Gradually reduced distally. (bases clasping to auriculate-clasping (earlike clasping?))
    b. Margins shallowly crenate to coarsely serrate or pinnately lobed

  3. a. Same as basal, Spatulate to oblanceolate
    b. Margins entire or with 1–2(–3) pairs of teeth

Anotado por arnanthescout arnanthescout, 24 de septiembre de 2021 a las 09:41 PM

Comentarios

No hay comentarios aún.

Añade un comentario

Entra o Regístrate para añadir comentarios