A Grammatical Dictionary of Botanical Latin

argillosus,-a,-um (adj.A): clayey, full of clay; “living in clayey places” (Lindley);

- in locis argillosis, in clayey places (often the word 'locis' is understood, hence, not written out).

- habitat in argillosis umbrosis Ohionis, it grows in clayey, shady (places) of Ohio.

- in planitiebus argilloso-arenosis paulo salinis deserti juxta flumen Murray (F. Mueller), in the clayey-sandy plains, somewhat saline, of the desert beside the Murray River.

- in solo argilloso in nemorosis graminosis humidiusculis per totam Europam (C. Mueller), on clay soil in woodland, grassy, somewhat humid [places] throughout all Europe.

- In terra argillosa praeprimis novalium Sardiniae, Siciliae, agri Neapolitani et Romani (C. Mueller), in clayey soil primarily of the fallow fields of Sandinia, Sicily, of the Naples region and Rome.