Appendix S1. Oxalis species with corresponding physiological, morphological, and phenological data. The seed, seedling, and combined seed‐and‐seedling data sets are recorded on three separate sheets.
Appendix S2. Cluster dendrograms indicating the percentage difference between Oxalis species, based on discrete and continuous seed and seedling morphological and developmental data. Data from the seed (A), seedling (B), and combined seed‐and‐seedling (C) data set were analyzed. The majority of replicates per species cluster together coherently. Cluster analyses revealed coherent clustering of data into at least three (or four) clusters, supporting three germination strategies.
Appendix S3. Individual factor maps of principal component analyses to visualize discrete and continuous Oxalis seed (A), seedling (B), and combined seed‐and‐seedling (C) morphological and developmental data for five replicates per species.
Appendix S4. A composite of three seed physiological traits used to define germination strategies among Cape Oxalis.
Appendix S5. Descriptions and interpretations of seed and seedling morphological and phenological traits associated with orthodox, intermediate, and recalcitrant Oxalis Groups A to F.
Appendix S6. A key to variable factor names used in Fig. 2A–C. Abbreviations correspond to descriptions of seed, seedling, and combined seed and seedling data sets as indicated on three separate sheets.
Appendix S7. Key to Oxalis species from Fig. 3. Group names and codes correspond to abbreviations used in this figure.