A personal favorite is the lovely tinted blue oat grass, Helictotrichon.

The grass species Helictotrichon schellianum is named for him.

Helictotrichon spp.

Other plant genera he worked on included Helictotrichon, Avenula, Rubus and Crataegus.

Helictotrichon desertorum (Less.)

Helictotrichon schellianum (Hack.)

Helictotrichon pubescens (Huds.)

Helictotrichon sempervirens (Vill.)

Helictotrichon turgidulum (Stapf) Schweick.

Helictotrichon virescens (Nees ex Steud.)

Helictotrichon sedenense (Clarion ex DC.)

Helictotrichon bromoides (Gouan) C. E. Hubb.

Helictotrichon sempervirens, or blue oat grass, is a species of flowering plant in the Poaceae family of true grasses, native to central and southwest European grasslands.

Helictotrichon pratense (meadow oat-grass) is a species of perennial grass in the Poaceae family, found in Europe, North Africa, and Asia.

The slopes at the Slovenian side are in large part forested, whereas its higher parts are home to a variety of Alpine flora, including the flowers Primula minima, Ranunculus alpestris, Cortusa matthioli, Campanula zoysii, and the grass Helictotrichon petzense.