Excerpt - page 203: "... Some people say the taproot of the bush morning glory (Ipomoealeptophylla), a very similar erect herbaceous plant of the western United ..."
Excerpt - Back Matter: "... mountain coral bells Hymenoxysgrandiflora, alpine sunflower Ipomoealeptophylla, bush morning glory Iris missouriensis, western blue flag Liatris punctata, ..."