...Hippopotami exist in the Lokalueje, so it may be inferred to be perennial, as the inhabitants asserted... 
David Livingstone 「Missionary Travels and Researches in South Africa」
... It is seen also about the native huts, and, so far as I could learn, it was the American cotton, so influenced by climate as to be perennial...
David Livingstone 「Missionary Travels and Researches in South Africa」
... The sides of these ranges are generally very precipitous, and there are rivulets between which are not perennial...
David Livingstone 「Missionary Travels and Researches in South Africa」
... On the southern bank was a small perennial influent, lined with bright green above, and with chocolate brown below, within some twenty yards of its mouth...
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 2」
...While we have no satisfactory perennial pasture legume, we have onesummer annual, lespedeza, that helps to some extent in North Florida...
Florida State Live Stock Association 「Florida: An Ideal Cattle State」
...It is the only perennial foragelegume that has in any sense made good in Florida...
Florida State Live Stock Association 「Florida: An Ideal Cattle State」
...Last year we secured from Guatemala a new perennial grass which, if itproves winter hardy, will, I am certain, be of enormous value to SouthFlorida...
Florida State Live Stock Association 「Florida: An Ideal Cattle State」
...Heavy grazing combined withdrought, gradually altered the original tall grass prairie; thebluestems and other perennial grasses were replaced by the introducedblue grass and by various weedy forbs...
Henry S. Fitch 「The Forest Habitat of the University of Kansas Natural History Reservation」
...The Heavens afford us a perennial store of treasure, wherein thethinker, poet or artist can find inexhaustible subjects ofcontemplation...
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
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