Ipomoea bracteata Cav.

draping vine, rhyolitic tuff gravels along Rio Batopilas.

clamoring vine on rhyolitic tuff gravels along Rio Batopilas.

coarse gravelly rhyolitic tuff soil along bank of Rio Batopilas.

rhyolitic tuff gravelly soil along bank of Rio Batopilas.

rhyolitic tuff gravelly soil along bank of Rio Batopilas.

rhyolitic tuff gravelly soil along bank of Rio Batopilas.

rhyolitic tuff gravelly soil along bank of Rio Batopilas.

rhyolitic tuff gravelly soil along bank of Rio Batopilas.

rhyolitic tuff gravelly soil along bank of Rio Batopilas.

Draping vine on hillside, rhyolitic tuff substrate.

Draping vine on hillside, rhyolitic tuff substrate.

Draping vine on hillside, rhyolitic tuff substrate.

Draping vine on hillside, rhyolitic tuff substrate.

plant on volcanic tuff soil/gravel accumulation along river bank in canyon bottom plant, trailing on trees & shrubs. SYN: Exogonium bracteatum

plant on volcanic tuff soil/gravel accumulation along river bank in canyon bottom plant, trailing on trees & shrubs. SYN Exogonium bracteatum

plant on volcanic tuff soil/gravel accumulation along river bank in canyon bottom plant, trailing on trees & shrubs. SYN: Exogonium bracteatum