George M. Diggs's scientific contributions

Citations

... Mature plants in this population have trunks, with some plants up to nearly nine meters tall (including crowns), and the leaves have large blades that vary from relatively flat to strongly costapalmate, the latter unlike S. minor. Plants in this population have been the source of debate and generally have been included in S. minor (Correll & Johnson 1970, Diggs et al. 2006. Trunk-bearing specimens of S. minor occur occasionally in the western portion of the range of the species, particularly in Louisiana and Texas, where they have been assigned several names, including S. deeringiana Small (1929aSmall ( : 34, 1929bSmall ( , 1933 and S. louisiana (Darby) Bomhard (1935: 44). ...
... The plant is very slender, much branched, rooted, submerged, herbaceous, grass-like, bright green, 10 to 60 cm long; roots may become long, creeping in soft mud [6]. This is one of the few genera of plants where fertilization takes place under the surface of the water [7]. A native of Africa, Middle East, Mediterranean areas, South and Central Asia, Papua and Australia, naturalized in Britain, it is becoming an increasingly invasive plant throughout the world, populating various types of still and slow-moving waters, ponds, paddy fields [8]. ...