| Substrate preference |
Deep sand |
Typically shallow soils over sandstone, laterite or basalt |
Lime-rich soils |
Insufficient data |
| Plant habit |
Subshrub or shrub to ~1 m high, usually erect or ascending |
Low spreading subshrub or shrub to ~0.5 m high, usually decumbent |
Low subshrub to ~0.5 m high, spreading, dome-shaped or rounded |
Low or dwarf subshrub or shrub to ~0.3 m high |
| Branchlet indumentum colour |
Silvery-white, white, sometimes fading to yellowish-white |
Yellowish-brown, sometimes fading to white |
White, or silvery-white |
White on younger branchlets, older branchlets becoming ferruginous (ferruginous rays and white rays sometimes on the same hair) |
| Stipule width (mm) |
0.16–0.4 |
0.1–0.17 |
0.2–0.5 |
0.2–0.35 |
| Leaf lamina colour (adaxial) |
Whitish-silver to grey, becoming greyish-green with age |
Green to dark green |
Grey to silvery-white |
Silvery–ferruginous |
| Leaf lamina shape |
Mostly ovate to lanceolate or oblong, occasionally broadly ovate |
Ovate to broadly ovate, rarely elliptic–ovate |
Ovate, elliptic–ovate or oblong–ovate |
Ovate to elliptic–ovate |
| Leaf lamina in transverse |
Flat to weakly concave or weakly folded |
Flat to weakly concave or weakly folded |
Mostly strongly concave to vshaped (and appearing folded on many herbarium specimens) |
Flat to weakly folded |
| Leaf lamina length and width (mm) |
10–55 × 5–35 |
9–52 × 8–33 |
6–28 × 4–16 |
17–43 × 6–22 |
| Leaf lamina base |
Obtuse, truncate or very broadly cuneate |
Broadly cuneate, obtuse or truncate |
Broadly cuneate or truncate |
Truncate, very slightly cordate or broadly obtuse |
| Leaf lamina margin |
Crenate to dentate |
Serrate to dentate, rarely crenate |
Serrate to dentate or crenate, undulate, sinus between teeth up to halfway to midvein |
Dentate to crenate |
| Abcision line (at peduncle–pedicel junction), whether visible and position |
Not obvious, obscured by hairs, usually 1–2 mm from the base, rarely up to one-half length from the base |
Sometimes obvious, one-third to one-half length from the base |
±Obvious, sometimes obscured by hairs, usually in upper half, 2–17 (–24) mm from the base |
±Obvious, sometimes obscured by hairs, approximately one-third length from the base |
| Number of epicalyx lobes |
5–8 (rarely 10, rarely bifurcating) |
5–7 |
7–8 |
5–6 |
| Epicalyx length (Including fused portion, excluding receptacle) (mm) |
7–16 |
6–10 |
4–14 |
6–12 |
| Fusion of epicalyx lobes at base |
Fused for 1–4 mm |
Free or fused to 0.5 mm |
Fused for 1–3.5 mm |
Free or fused for up to 1 mm |
| Epicalyx lobes degree of curvature |
Straight in flower, becoming recurved or rarely incurved in fruit |
Straight |
Straight in flower, becoming recurved in fruit |
Straight in flower, becoming recurved in fruit |
| Corolla colour |
Pale pink or mauve (rarely white) |
Pale pink or white (sometimes drying pale yellow) |
Pale pink to mauve, sometimes almost white |
Purple |
| Petal length (mm) |
17–35 |
15–28 |
20–44 |
39–42 |
| Seed indumentum |
Patchy indumentum of wispy spreading, white to off-white hairs |
Short patchy indumentum of appressed white to yellowish-brown hairs |
Short patchy indumentum of appressed white hairs |
Short patchy indumentum of appressed white to yellowish hairs |
| Seed length (mm, greatest dimension) |
2–3 |
1.7–2.3 |
2.5–3 |
~3 |
| Seed characteristic features or notes |
Reniform (rarely subangular–reniform), funicular remnants brown, membranous and wing-like, on either side of the hilum |
Two straighter sides almost forming a right angle at intersection, funicular remnants brown, membranous and wing-like, one centrally placed and one on either side of the hilum |
Two straighter sides almost forming a right angle at intersection, funicular remnants brown, membranous and wing-like, on either side of the hilum |
Two straighter sides almost forming a right angle at intersection, funicular remnants brown, membranous and wing-like, on either side of the hilum |
| Flower cleistogamy |
Observed in some specimens |
No evidence |
Observed in a single specimen |
Not observed in material examined |