一幅没有标题的黑白圣诞树线稿，采用简洁轮廓的涂色页风格。画面是带波浪边的树，顶端有星星，挂着五个圆形装饰球，下方是小花盆，均为白底上均匀的黑色线条。可作为底图加入自己的文字，如姓名、祝福语或日期，也可以直接涂色。

Create a clean, beginner-friendly Christmas tree drawing on a plain white square sheet of paper. Show one complete, front-facing tree centered with generous clear margins. Use simple, crisp black outlines only: a small five-point star on top, a tree made from three broad, gently zigzagging tiers of branches, a few large, round ornaments spaced clearly apart, and a short, simple flowerpot-shaped base. Keep the shapes bold, open, and easy to copy by hand; use consistent medium-weight lines with softly rounded corners. Leave the inside of the tree, ornaments, star, and pot white. No shading, color, background decoration, extra Christmas motifs, lettering, numbers, labels, or watermark.