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Table 9.3 Comparison of the Occurrence of Tree Species within the Three Study Areas

Family	Genus, species	Dicot./ monocot.	Life-form	Yensiso area			Sekesua area		Amanase area
Family	Genus, species	Dicot./ monocot.	Life-form	Yensi- so	Kokor- mu	Aden- ya	Oson- son	Seke- sua	Whana- benya	Amanase
Agavaceae	Dracaena arborea	Monocot.	t		+		+	+	+	+
Anacardiaceae	Anacardiurn occidentale	Dicot.	t	+	+
Anacardiaceae	Mangifera indica	Dicot.	t	+	+	+	+	+	+	+
Annonaceae	Annona sp.	Dicot.	t	+
Apocynaceae	Alstonia boonei	Dicot.	T/t	+	+	+	+
	Tabernaemontana glandulosa	Dicot.	T/t	+
	Rauvolfia vomitoria	Dicot.	t/s	+		+	+	+	+	+
Bignoniaceae	Newbouldia laevis	Dicot.	t		+	+	+	+	+
Bombacaceae	Bombax buonopozense	Dicot.	T	+		+	+
	Ceiba pentandra	Dicot.	T	+	+	+	+	+	+
	Adansonia digitata	Dicot.	t			+
Caesalpiniaceae	Caesalpinia pulcherrima	Dicot.	t			+
	Cassia occidentalis	Dicot.	s				+
	Cassia siamea	Dicot.	t	+	+	+	+	+	+
	Dialium guineense	Dicot.	t

Table 9.4 Comparison of the Occurrence of Herbaceous and Shrub Species in the Three Study Areas

Family	Genus, species	Dicot./ monocot.	Life- form	Yensiso area			Sekesua area		Amanase area
Family	Genus, species	Dicot./ monocot.	Life- form	Yensi- so	Kokor- mu	Aden- ya	Oson- son	Seke- sua	Whana- benya	Amanase
Acanthaceae	Asystasiacalycina	Dicot.	H			+
Bignoniaceae	Spathodea carnpanulata	Dicot.	T			+
Cannaceae	Canna indica	Monocot.	H		+	+			+
Cucurbitaceae	Coccinia grandis	Dicot.	c/H			+
Commelinaceae	Commelina capitula	Monocot.	H		+			+	+	+
Caesalpiniaceae	Griffonia sirnplicifolia	Dicot.	C		+	+	+	+	+
Combretaceae	Cornbreturn aphanopetalurn	Dicot.	c		+	+		+	+	+
Compositae	Acanthosperrnum hispidum	Dicot.	H		+		+	+		+
	Ageraturn conyzoides	Dicot.	H	+	+	+	+	+		+
	Aspilia africana	Dicot.	H	+	+	+	+	+	+	+
	Bidens pilosa	Dicot.	H		+	+				+
	Chromolaena odorata	Dicot.	H	+	+	+	+	+	+	+
	Lactuca taraxacifolia	Dicot.	H		+
	Tridax procurnbens	Dicot.	H		+					+
Convolvulaceae	Ipomoea muricata	Dicot.	c/H		+
Cyperaceae	Cyperus rotundus	Monocot.	H		+	+				+
Cyperaceae	Mariscus ligularis	Monocot.	H	+				+
Euphorbiaceae	Euphorbia hirta	Dicot.	H		+	+	+	+	+	+
	Phyllanthus pcntandrus	Dicot.	H	+	+
	Ricinus communis	Dicot.	H				+	+
Gramineae	Andropogon africans	Monocot.	H		+			+	+	+
	Digitaria diagonalis	Monocot.	H	+			+	+
	Eleusine indica	Monocot.	H	+
	Imperata cylindrica	Monocot.	H		+
	Panicum maximum	Monocot.	H	+	+	+			+	+
	Paspalum orbiculare	Monocot.	H		+	+		+	+
	Phragmites australis	Monocot.	H		+
	Sporobolus pyramidalis	Monocot.	H	+	+	+	+	+	+
Liliaceae	Gloriosa superba	Monocot.	g/c	+
Malvaceae	Abunlon maurifianum	Dicot.	H						+
	Gossypium arboreum	Dicot.	s		+	+	+	+
	Sida acuta	Dicot.	H	+	+	+		+
Mimosaceae	Mimosa pudica	Dicot.	H			+	+
Mimosaceae	Shrankialeptocarpa	Dicot.	c	+
Nyctaginaceae	Mirabilis jelapa	Dicot.	H			+	+
Papilionaceae	Arachis hypogea	Dicot.	H		+
	Centrosema pubescens	Dicot.	c/H	+			+
	Desmodium trifolium	Dicot.	H		+	+	+	+
	Peuraria phaseoloides	Dicot.	H			+	+	+
	Trifolium repens	Dicot.	H			+
Portulacaceae	Talinum triangulare	Dicot.	H			+
Solanaceae	Datura suaveolens	Dicot.	H		+
	Schwenkia americana	Dicot.	H		+
	Solanum torvum	Dicot.	H			+	+
Scrophulariaceae	Scoparia dukis	Dicot.	H	+			+
Sapotaceae	Chrysophyllum albidum	Dicot.	T/t		+
Sapindaceae	Allophyllus africanus	Dicot.	c		+	+
Sapindaceae	Paullinia pinnata	Dicot.	c		+	+	+	+
Sterculiaceae	Waltheria indica	Dicot.	H		+		+
Tiliaceae	Triumfetta rhomboidea	Dicot.	H	+			+	+
Urticaceae	Urtica aestuans	Dicot.	H		+	+
Verbenaceae	Clerodendron umbellanum	Dicot.	c		+	+	+	+
	Lantana camara	Dicot.	t		+		+
	Starchytarphetta indica	Dicot.	H	+	+
Zingiberaceae	Costus engleranus	Monocot.	H	+

T = large tree capable of exceeding 30 m ht. (megaphanerophyte) c = small understorey climber t = small tree s = shrub or pygmy tree

C = large climber capable of reaching the canopy H = herb

Both tables 9.2 and 9.4 indicated that of the non-tree species, herbaceous plants constituted the largest flora. Considering that the woody tree species listed above were actually very few both in density and abundance, and that the few that did occur were also very widely spaced apart, the flora in the entire study area could be said to be predominantly herbaceous. Among these herbs, there was a preponderance of species from the Compositae, Gramineae and Euphorbiaceae. There were seven species from the Compositae, namely: Acanthospermum hispidum, Ageratum conyzoides, Aspilia africana, Bidens pilosa, Chromolaena odorata, Lactuca taraxacifolia and Tridax procumbens. Of these, Chromolaena odorata and Aspilia africana were found in all the study sites; but whereas Aspilia africana occurred in only sparsely distributed patches, Chromolaena odorata was found everywhere and in thick impenetrable masses, particularly over farm lands that were in fallow. The Gramineae comprised eight species, namely: Andropogon africans, Digitaria diagonalis, Eleusine indica, Imperata cylindrica, Panicum maximum, Paspalum orbiculare, Phragmites australis and Sporobolus pyramidalis. The Euphorbiaceae contained three species, namely: Euphorbia hirta, Phyllanthus pentandrus and Ricinus communist Euphorbia hirta was the most common species in the family Euphorbiaceae. The family Papilionaceae consisted of one cultivated species, Arachis hypogea, and four uncultivated species, namely: Centrosema pubescens, Desmodium trifolium, Peuraria phaseoloides and Trifolium repens. Centrosema pubescens and Peuraria phaseoloides were the most common and predominant. C. pubescens was found in all the villages except Adenya and Sekesua, while P. phaseoloides was found in all except Yensiso and Whanabenya. Desmodium trifolium was found at Adenya, Osonson and Sekesua. The family Solanaceae, consisting of three species, Datura suaveolens, Schwenkia americana and Solanum torvum, with S. torvum being the commonest, was found at Kokormu, Adenya and Osonson.

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