Eriogonum robustum

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Title: Member
Joined: 2009-12-04
Eriogonum robustum

E. robustum is a rare western Nevada native it is found growing on eroding exposed slopes, composed of course unstable altered andesite. In the wild this species habitat is limited to these sights.
Blooms mid-late June. The flowers are creamy yellow, infloresence is umbellate held 3”-4”
above the foliage. The plants grow as tufted mounding mats 8”-10” tall and up to 8” across. The flowering stems are stout and grow erect. The leaves are grouped into rosettes. They are large ovate shaped. Densely white tomentos above and less so on the lower surface.

At one time this was listed as a variety of E. lobbii. It's designation is currently that of a separate species.
E. robustum dose not require an andesite growing medium. I grow it on a 50-50 mix of
mineral clay and disintegrated granite. Does well in a garden setting.

These photos are of E. robustum growing in my garden.

Mark McD
Title: Moderator
Joined: 2009-12-14

Fascinating history on this one; the foliage rosettes has a most distinctive looks, reminiscent of Physaria chambersii.  I see from the Calphotos, the photos are consistent white-cream colored.

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at

Hoy's picture
Title: Member
Joined: 2009-12-15

What a pity. It's not on the recommendation list!

Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!

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