| Character | A. californicum* | A. monticola† |
|---|---|---|
| Shoot height range (mean) | 6–12 (8) cm | 5–10 (7) cm |
| Shoot color | Yellow to greenish | Dark brown |
| Basal shoot diameter (mean) | 1.5–4 (2) mm | 2–4 (3) mm |
| Third internode length (mean) x width |
5–16 (10) x 1.5 mm | 8–15 (12) x 2 mm |
| Mature fruit length x width | 4 x 2.5 mm | 4 x 2 mm |
| Peak flowering period | July | July–August |
| Peak seed dispersal period | September | October–November |
| Parasitism of Pinus lambertiana | Common | Rare |
| Parasitism of Pinus monticola | Rare | Common |
| *Character values based on 8 collections. †Character values based on 26 collections. |
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