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[[underline]] Mandan

Dec. 5. [[/underline]] Packed up & sent baggage, then crossed over to Mandan & tramped over hills north & west of town and over the Heart River bottoms. Found a stronger element of Upper Sonoran than on east side of river. The north side of valley is a very warm & protected slope and the bottoms are warm & sheltered.

As Upper Sonoran elements we found abundance of Yucca angustifolia in well matured ripe fruits all over the south slope. Two species of tall red broon grass (Andropogon?) give a strong color to the south slopes but not on top or north slopes. Other plants that are probably Upper Sonoran are Hasadacia [[space]], Dalia [[space]], Aeselepias spuciata?, Helianthus annuus, Clematis virginiana & Mentzilia [[space]],. On the bottoms Populus fremonti & Salix nigra may indicate Upper Sonoran but I want to map the range of the species before deciding.

Most of the vegetation however is neutral or Transition.
Artemisia cava is common along