Assertion: african violet's flower | /r/CapableOf | grow among shaded rocky ledges
Facets:
value: in the usambara mountains
type: LOCATION
Source sentences:
text: In 1892 Baron Walter von Saint Paul-Illaire, the German governor of a northeastern province in Tanganyika (now part of Tanzania), found a low-growing plant with very hairy, fleshy leaves, and striking blue flowers growing among shaded rocky ledges in the Usambara Mountains.