Archivos de diario de mayo 2023

16 de mayo de 2023

Ankeny Flats

The flat area near Ankeny Camp Area, just north of Dry Falls.

Main comments at

Revisit to more fully map patterns. Especially closer to lake side where I haven't recorded as much, and after early May to catch the later flowering plants. Also visit in very early spring 2024 (~early April) to get the early flowering plants, which I missed in 2023.

Graphical species list should be gotten with:

Publicado el mayo 16, 2023 07:10 TARDE por jhorthos jhorthos | 0 comentarios | Deja un comentario

30 de mayo de 2023

Eriogonum (Buckwheat) Identification

E. douglasii - very similar to E. sphaerocephalum sublineare. ID notes at

E. elatum - late flowering clouds of small white flowers in small clusters with large ovate to arrowhead shaped basal leaves on petioles about leaf-length, very tall flower stems, usually highly branched and robust, leafless, giving a rather sparse open look with small flowers.

E. heracleoides - widespread, larger and shaggier than sphaerocephalum with longer narrower leaves and more open flower umbels and usually with large leafy mid-stem bract (often missing in certain areas of central WA), largish plant, flowers cream to pink infused.

E. niveum - [strictum] low sprawling shrub when not in flower, with smallish ovate to broadly lanceolate leaves on long petioles, densely wooly and usually held vertically. Late flowering freely branched sprays of small flowers, usually white often with narrow pink stripes. Leafy bract at each flower stem branching. Flower stems persist through the winter and are often dark reddish brown. Inner whorl petals (tepals) narrower than outer petals (dimorphic tepals, same as E. strictum). and

E. ovalifolium - very low silvery to greyish foliage (occasionally green) varying from small upright paddle-like leaves to densely packed curled leaves, often forming sizeable mats. One variety has brown margins on leaves. With close inspection three tepals are much narrower and longer than others (dimorphic tepals). Flowers can be candy-striped, or pale to bright yellow, or sometimes dark pink or even red. Flower bracts form a cluster of several conical bract sheaths, each bearing several flowers.

E. sphaerocephalum - up to 60 cm (24 in) tall, often flowers profusely, bright yellow, intermediate growth form between thymoides/douglasii and heracleoides, except for south central WA (var sublineare) when lower growing much like douglasii but often with revolute leaf margins. Flowers are often compound umbels with a leafy bract around the base, red in bud opening bright yellow. and ID notes:

E. strictum - [niveum] similar to E. niveum, but with no leafy bract on flower stem, see below. Also often has much longer petioles (up to 4x leaf length) than E. niveum, though I think that character overlaps. Usually flowers somewhat earlier than niveum, starting in May in cool year, April in warm year (WA), latest flowers in August. If flowers are creamy to bright yellow, nearly always strictum. Burke comments also suggest this is the common one on rocks and lithosol, with E. niveum usually in deeper sandier soil. Leaf habit usually lower and sometimes looking more like a large E. ovalifolium with longer petioles. Flowers often more yellow than niveum. Usually less branched flower stems than niveum. Inner whorl petals (tepals) narrower than outer petals (same as E. niveum).

E. thymoides - easy to recognize from small neat rounded habit and thymelike leaves, appearing like short cylinders. Sometimes old plants sprawl and have a larger woody base but the growing parts still have the neat habit. This and E. douglasii are often found in very rocky shallow soil (scabland).

E. umbellatum - Sulfur Buckwheaat. highly asymmetric tepals, flowers usually yellow but sometimes cream or with some red. Mat-like to raised loose mat, with green upper and pale woolly lower leaves, usually oval but sometimes more elongated, pedicels about half leaf length. Involucre with oval tipped reflexed lobes. Flower heads often compound, when the branches are subtended by prominant leaf-like bracts.

E. niveum and E. strictum are similar but most reliably differentiated by the leafy bract at the flower branches in E. niveum (inconspicuous and threadlike in E. strictum).

Burke: "The leafy bracts below the flowers throughout the inflorescence separates E. niveum from the similar E. strictum, which has no leafy bracts." JHT adds - the bract leaves are smaller than the basal leaves but similarly hairy and silver in tone.

Comments and links on iNat:

From jdjohnson:
"Dimorphic tepals means that three tepals are wide and three tepals are narrow. If you find a close-up photo of Eriogonum ovalifolium flowers, you can see the difference."

E. ovalifolium: apparent with a good close up of individual flowers that are well opened, and then dimorphic tepals are very clear, e.g. photo 3 of, with the inner whorl much narrower than the outer.

Publicado el mayo 30, 2023 03:09 TARDE por jhorthos jhorthos | 0 comentarios | Deja un comentario

Phlox douglasii

Publicado el mayo 30, 2023 04:27 TARDE por jhorthos jhorthos | 0 comentarios | Deja un comentario